Answer:
Bacteria has 1 cell and An Animal has multiple cells.
Explanation:
Bacteria is a cell its self. While An Animal, It has multiple cells that create multiple tissues, and those tissues create multiple organs, those organs make up an organ system. After the Organ System, it's an organism.
Organism = Animal, Human, Ect.
Meanwhile, Bacteria is made up ONE CELL (bacteria it's self is 1 cell)
So the answer is "Bacteria has 1 cell and An Animal has multiple cells."
I hope this helped!! <33
Someone plz help me :(
Answer:
B and A.
Explanation:
Many of the great scientists were religious. But the answer is not D.
A scientist may have strong opinions. That was certainly true of Newton. Most of the time he was right. Still the answer is not C. Science requires an open mind.
The answer is between A and B. Many discoveries were made looking at the natural world. That may provide the inspiration. But I don't think it is the answer. I'm going to say A
B is the other answer. Between A and B many scientific truths have been discovered.
question : what are isotopes
Answer:
Isotopes are versions of the same element. They have the same number of protons and electrons as the element but different mass numbers and number of neutrons.
Explanation:
one of two or more species of atoms of a chemical element with the same atomic number and position in the periodic table.
give any two reasons that hydrogen is kept in group 1 in Modern Periodic Table
Answer:
Hydrogen is usually classified as a group 1 element since it has one valence electron, just like group 1 metals.
Explanation:
Why does the author include information about bread and sandwich wrappings in the article?
(A) to show that the scientific method is often used to understand things about food
(B) to provide an example of something that can be tested by the scientific method
(C) to demonstrate the problems that can be caused by improper seals and wrappings
(D) to help evaluate how the weight of bread can show how much moisture it has
Answer:
what is the story about actually.i think it's from ur lesson
Explanation:
certain breads mold easily...(fact)..
especially white bread., when exposed to any moisture, from refrigeration, or freezing..
when taken out of (cold environment), humidity in air causes molding because you take it from cold to/warm environment.
check expiration dates, keep refrigerated, and inspect 4 molding. Companies like WMART, buy in bulk, when on shelf, defrosts,, then has molding within expiration dates..
Most Ancient Greek philosophers discusses the world around them but did not do any experiments or make detailed observations
Answer:
Because to them it was just a little bit of fiction. so they don't really think it's necessary to do experiments or make detailed observation
Explanation:
it's just like how we presently today discuss about robot talking to us like humans but it's not yet come to pass .
c. Mention the function of corolla.
Answer:
Overall, the main function of the corolla is to assist in the reproductive process of the plant. The petals of the corolla are designed to aid in pollination, and therefore, increase the chance of successful reproduction of the flower.
to assist in the reproductive process of the plant...
Which of the following statements correctly explains why the excretory system is different from the digestive system? (1 point)
The excretory system is different from the digestive system because it removes waste from the body by filtering water, which
includes mostly the by-products of metabolism.
The excretory system is different from the digestive system because it removes waste from the body by filtering urine, which
includes mostly the by-products of metabolism
The excretory system is different from the digestive system because it removes waste from the body by filtering food, which
includes mostly the by-products of metabolism. filtering food
SS
2
The excretory system is different from the digestive system because it removes waste from the body by filtering blood, which
o
includes mostly the by-products of metabolism
U.
Hey
Answer:
The excretory system removes waste from the body. remove waste from the blood. The digestive system breaks down the food you eat into nutrients that provide energy and building materials for cells. The digestive and excretory sytems work together to process the food that you eat.
I’m having trouble on problem number 5. and I can’t find the answer, and I could really use some help.
What isotope will be formed by the fusion of a H-1 isotope and a H-3 isotope? Would the
product be a stable Isotope? Explain.
|
Answer:
Use the edit icon to pin, add or delete clips.
Explanation:
hfdknvd hcde
the atomic number of calcium is 20 . the maximum possible numbers of electron in m-shell is a 2 b 8 c 18 d 10
Answer:
8
Explanation:
Electronic configuration of Calcium = 2, 8, 8, 2
M shell = 3rd energy level
Maximum number of shells in m shell is 8
What are two factors that can change the rate of a chemical?
Answer:
the surface area of a solid reactant.
temperature.
presence/absence of a catalyst.
A car start from rest and covers distance of 100m after 10seconds.if the acceleration is 2m/s square, calculate the final velocity..
Answer:
20 m/s
Explanation:
solution,
initial velocity (u)=0 m/s
Distance covered(s)=100m
Time taken(t)=10 seconds
Acceleration (a)=2m/s²
Now,
By using first equation of motion, we have
v=u+at
=0+2×10
=20 m/s
I hope it helped U
stay safe stay happy
Which statement about metals and nonmetals is correct? (1 point)
O Metals and nonmetals can both be found in any column of the periodic table.
O Most metals are a solid under normal conditions, and most nonmetals are a liquid.
O Metals tend to be poor conductors of electricity, while nonmetals are strong conductors of electricity.
O Metals can be hammered into thin sheets, and nonmetals are brittle
Answer:
The answer is the 4th one
The statement about metals and nonmetals that is correct is: "The Metals can be hammered into thin sheets, and nonmetals are brittle."
Metals are found mostly towards the left hand side of the periodic table. Non-metal character increases as you move towards the right hand side of the table.
One common property of metals is that they are malleable; this means that they can be hammered into sheets while a common property of nonmetals is that most of them are brittle.
Learn more: https://brainly.com/question/10714037
What is the Color of trioxonitrate(v)
Answer:
it's yellowish in color plz Mark me as brainliest
Answer:
It's a yellowish color like copper
what amount (in moles) is present in 2.0g of sodium hydroxide,NaOH
Answer: 0.050 moles of NaOH
Explanation: The molar mass of NaOH is 40.0g/mole
2.0g/40.0g/mole = 0.050 moles (2 sig fig)
So I had a question which was, What is the charge on a neutron?
A. neutral
Bon positive
C. negative
(Which one of those is right choice?)
Answer:
A. neutral
Explanation:
It's net charge is 0.
Hope it is helpful....Answer:
A. neutral
Explanation:
A neutron is given by formular
[tex]» \: \: {}^{1}_{0}n[/tex]
hence it's net charge is zero
What is the molar mass of C3H8O2? (Round to three significant figures)
Answer:
The molar mass of [tex]C_3H_8O_2[/tex] (rounded to three significant figures) is 76.1 amu.
Step-by-step explanation:
Hey there!
To answer this question, you will need access to a periodic table. You need to know the atomic masses of carbon (C), hydrogen (H), and oxygen (O) in order to answer this question. With that out of the way, let's begin!
We have a chemical formula: [tex]C_3H_8O_2[/tex].
The letters are element symbols, which are basically the code for an element. Think of it as an abbreviation or something similar to an ID.The subscripts (numbers) help us identify how many atoms of each element are included in the substance.The first thing we should do is locate C, H, and O on a periodic table and figure out the atomic masses for each element. This will help us determine the total molar mass of the substance.
Determining the Atomic Mass of CIf we locate C on a periodic table, we see that its atomic mass is roughly 12.01 amu (atomic mass units). Then, we have a subscript of 3, so we simply multiply the subscript by the given atomic mass in order to find the atomic mass of the three atoms of carbon.
[tex]3 \times 12.01 = 36.03 \text{ amu}[/tex]
This means that C accounts for 36.03 amu of the molar mass of the substance.
Determining the Atomic Mass of HUsing the same principle as before, we want to find the atomic mass of one atom of H. This is 1.008, so we will multiply 1.008 by the eight atoms (pay attention to the subscript) in order to find the atomic mass of hydrogen in the substance.
[tex]8 \times 1.008 = 8.064 \text{ amu}[/tex]
This means that H accounts for 8.064 amu of the molar mass of the substance.
* An important note to add is that we should never round our values until the end of the problem so we make sure to get as close as possible (this is why you learn about accuracy and precision in a chemistry class).
Determining the Atomic Mass of OFinally, we want to find the atomic mass of O in the substance, so we'll use the same method as before and locate the atomic mass of one atom of oxygen. We find that this is 15.999, which would definitely round to 16.00, but remember the rules for rounding in chemistry in order to be as accurate as possible. Since our subscript is 2, we know that there are two oxygen atoms, so we will multiply the atomic mass of oxygen by 2.
[tex]2 \times 15.999 = 31.998 \text{ amu}[/tex]
This means that O accounts for 31.998 amu of the molar mass of the substance.
Summation of the Determined Atomic MassesAfter you have determined the atomic masses of the atoms in the chemical substance, you have to add these together. This is performed with simple addition.
C = 36.03 amuH = 8.064 amuO = 31.998 amuNow, let's add these together.
[tex]36.03 \text{ amu} + 8.064 \text{ amu} + 31.998 \text{ amu} = 76.092 \text{ amu}[/tex]
Therefore, the total atomic mass is 76.092 amu.
Rounding to Meet Significant Figures RequirementsSignificant figures are used to determine the accuracy of a problem. A basic rule is to use scientific notation to determine how to meet the significant figure request. Since we are rounding to three significant figures, we want to make sure these three figures are significant. There are three basic rules to remember when computing significant figures:
Any zeroes to the left of the first non-zero number (ex: 0.0981) are insignificant.Any zeroes "trapped" in between other non-zero numbers (ex: 9.81075) are significant.Any zeroes to the right of the last non-zero number (ex: 5900) are significant ONLY IF they are added after a decimal point and included in the measurement (ex: 5900.)Therefore, since we need three significant figures, we have to round our value first and then determine the appropriate number of significant figures.
76.092 will round to 76.09 first, and then round to 76.1. We cannot use 76.09 since there is a trapped zero, which is considered significant.We must use 76.1 since there are three significant figures in the value.Final AnswerSince we have determined that 76.1 fits our requirements for three significant figures, we can safely determine that the molar mass of [tex]C_3H_8O_2[/tex], as determined, is 76.1 amu.
= 3 × Mass of C + 8 × Mass of H + 2 × Mass of O
= (3 × 12.01 + 8 × 1.008 + 2 × 15.999) g/mol
= (36.03 + 8.064 + 31.998) g/mol
= 76.092 g/mol
Answer:
76.092 g/mol
Hope you could get an idea from here.
Doubt clarification - use comment section.
A dehydration reaction (or condensation reaction) is the process in which _____. See Concept 5.1 (Page) View Available Hint(s)for Part A water molecules are produced as a polymer is formed from monomers the bonds between the individual monomers of a polymer are broken by the addition of water molecules water molecules are attracted to each other water molecules are used as a source of raw material to break down polymers to monomers None of the choices is correct.
A dehydration reaction (or condensation reaction) is the process in which water molecules are produced as a polymer is formed from monomers.
A chemical reaction is the process by which substances called reactants are transformed to another substance known as products through the breaking up or building up of bonds between the reactants.
There are different types of chemicals reaction which includes condensation reaction.
Condensation reaction involves the combination of two smaller molecules known as monomers to for one larger molecule known as polymer with the loss of water molecule.
Condensation reaction is specifically called dehydration reaction due to the loss of water molecule that is involved.
Therefore, a dehydration reaction (or condensation reaction) is the process in which water molecules are produced as a polymer is formed from monomers.
Learn more here:
https://brainly.com/question/20300284
What is the Color of trioxonitrate
Answer:
And the ans is yellowish
What is the difference between luminous objects and non luminous objects
Answer:
Objects that can emit light energy by themselves are known as luminous objects. Objects that cannot emit light energy by themselves are known as non-luminous objects.
Explanation:
Explanation:
Luminous objects:- The objects that can emit light energy by themselves are known as luminous objects.
Objects like the sun that give out or emit light of their own are luminous objects.
Other examples of luminous bodies are Electric bulb, torch etc.
Non-luminous objects:- the objects that can not emit light energy by themselves are known as Non- luminous objects.
Objects like the moon that do not give out or emit light of their own are Non- luminous objects.
Moon is an example of a non-luminous object as we can see the moon because it reflects light from the sun.
Other examples of Non luminous bodies are pen, pencil, chair, wood etc.
Luminosity – It is defined as the luminous intensity in a particular direction; or we can say it is the apparent brightness of an image.
The brightness of a star is defined as the total energy radiated in unit time. It is related to the surface area (A) and the effective temperature (TT) ( the temperature of a black body having the same radius as the star and radiating the same amount of energy per unit area in one second ) by a form of Stefan’s law, here is given by
⇒L=AσT4⇒L=AσT4
where
σ is the Stefan’s constant and L is the luminosity.
Note:
The laptop screen, mobile screen you are looking at right now is luminous but the page of your book is a non-luminous object, which is why you need a light on to read it.
Classify the following properties of the element
silicon as chemical or physical properties:
a. blue-gray color
b. brittle
c. doesn't dissolve in water
d. melts at 1410°C
e. reacts vigorously with fluorine
We have that this how they differ
Physical properties
Blue-gray color BrittleChemical Properties
Doesn't dissolve in water Melts at 1410°C Reacts vigorously with fluorine
From the Question we are told that
Silicon properties:
a. blue-gray color
b. brittle
c. doesn't dissolve in water
d. melts at 1410°C
e. reacts vigorously with fluorine
Physical properties
This Refer to Properties that can be seen and Measured
While
Chemical Properties
This are Refers to the effect of the element in reactions
Therefore
Physical properties
Blue-gray color BrittleChemical Properties
Doesn't dissolve in water Melts at 1410°C Reacts vigorously with fluorineFor more information on this visit
https://brainly.com/question/17148237?referrer=searchResults
In comparing groups, the first or the second, which group was more precise or was the precision the same
Comparing the data obtained online, the first group is more precise
The reason the above selection is correct is as follows;
Question: Parts of the question appear missing from a similar question online and included here;
First Group:
[tex]\begin{array}{|c|c|c|c|c|c|c|} Team \ a &Team \ b&Team \ c&Team \ d&Team \ e&Team \ f&Team \ g\\2.77 \ cm&2.60 \ cm&2.80 \ cm&2.65 \ cm&2.75 \ cm&2.65 \ cm& 2.68 \ cm\end{array}\right][/tex]
Second Group
[tex]\begin{array}{|c|c|c|c|c|c|c|} Team \ a &Team \ b&Team \ c&Team \ d&Team \ e&Team \ f&Team \ g\\2.70 \ cm&2.78 \ cm&2.62 \ cm&2.65 \ cm&2.75 \ cm&2.80 \ cm& 2.60 \ cm\end{array}\right][/tex]
Calculations for the first group:
The average = (2.77 + 2.60 + 2.80 + 2.65 + 2.75 + 2.65 + 2.68)/7 = 2.7
The range = 2.80 - 2.60 = 0.20
The approximate ± range of the average = ±0.2/2 = ±0.1
The precision of the first measurement is 2.7 ± 0.1 cm
Calculations for the second group:
The average = (2.70 + 2.78 + 2.62 + 2.65 + 2.75 + 2.80 + 2.60)/7 = 2.7
The range = 2.80 - 2.60 = 0.20
The approximate ± range from the average = ±0.2/2 = ±0.1
The range of values from the average is approximately ±0.1 cm
The precision of the first measurement is 2.7 ± 0.1 cm
Method to determine precision:
Precision is given by the finding the average deviation and the standard deviation as follows;
[tex]\mathbf{Average \ deviation} = \dfrac{\sum \left | x - \mu \right |}{n}[/tex]
[tex]\mathbf{Standard\ deviation} =\sqrt{\dfrac{\sum \left ( x - \mu \right )^2}{n}}[/tex]
Where;
μ = The mean or average = 2.7
n = The number of items (count) of the data = 7
For the first group, we have;
[tex]\mathbf{\dfrac{\sum \left | x - \mu \right |}{n}} = \dfrac{0.07 + 0.1 + 0.1 + 0.05 + 0.05 + 0.05 + 0.02 }{7} = \mathbf{0.062857}[/tex]
The average deviation of the first group = 0.062857
∑(x - μ)² ≈ 0.0328
[tex]\mathbf{The \ standard\ deviation} =\sqrt{\dfrac{0.0328}{7}} \approx \mathbf{0.068452}[/tex]
For the second group, we have;
[tex]\mathbf{\dfrac{\sum \left | x - \mu \right |}{n}} = \dfrac{0.0+ 0.08 + 0.08 + 0.05 + 0.05 + 0.1 + 0.1 }{7} = \mathbf{0.06571428571}[/tex]
∑(x - μ)² ≈ 0.0378
[tex]\mathbf{The \ standard\ deviation} =\sqrt{\dfrac{0.0378}{7}} \approx \mathbf{0.073485}[/tex]
By using the average deviation, and standard deviation values, the deviation of the second group is more than the first group and therefore the first group is more precise
Learn more about accuracy and precision here:
https://brainly.com/question/11992940
I need help on this, It’s due today. Please, anybody
Answer:
1 = 252g, 2 = 2mL, 3 = 1.5mL, 4 = 3g, 5 = 225g, 6 = 0.92g/mL, 7 = 0.75g/mL, 8 = 0.71g/mL, 9 = 1.9mL, 10= 1.11mL, 11 = 76.9g
Explanation:
This problem is testing how well you can move around the equation D = m/v where D = Density (g/mL), m= mass of sample (g), v = volume of sample (mL).
anyone know valency of phosphide and phosphite please tell me and also they are not same .If you know can i get their symbol too please
i found this. there's more coming up
Measurements of the heights of various plants in an experiment are called
Answer:
Option 1 Data
Answer:
data
Explanation:
that is the answer
please 5 stars
How does water vapor in the air change state below the freezing point
Answer:
Water vapor molecules in the air near the can cooled when energy from the air transferred to the cold can. These water molecules slowed down, condensed to liquid water, and then froze to become ice. Your can might have some water and some ice on the outside of it.
Explanation:
5. What is common among the following phenomena?
* Blinking of traffic light
* Rotation of blades of fan
* Swinging of pendulum of a clock
a) All are chemical changes
b) All are periodic changes
c) All are undesirable changes
d) All are irreversible changes
Answer:
All are periodic changes
[And is that a todoroki pfp, I like MHA too
(・∀・) ]
on what bases are the elements of periodic table classified?
The elements can also be classified into the main-group elements (or representative elements) in the columns labeled 1, 2, and 13–18; the transition metals in the columns labeled 3–12; and inner transition metals in the two rows at the bottom of the table (the top-row elements are called lanthanides and the bottom-row ...
Hello,
What are Elements?Elements are a group of the Periodic Table that shares common valence electron structures. They are arranged in order of increasing Atomic Number.
Now back to the question:-In modern periodic table they are classified into three parts- metals, non-metals and metalloids.
In detail:-
• Metals- Metals are those elements which donate electrons. Ex- Na, K, Rb, Mg, Ca, etc.
• Non-metals- Non-metals are those elements which accept electrons. Ex- N, O, F, Cl, etc .
• Metalloids- Metalloids are those elements which show property of both metals and non-metals. Ex- B, Si, Ge, etc.
Hope it helps...
(by Benjemin)
during the interconversion of state of matter, mass undergoes and change? true or false
True.
The Mass Undergoes change only in ( Solid state to liquid state ) Ice Cube to Water .
Mass changes from mg to litre.
[tex]\huge\mathfrak\red{hope \: it \: helps}[/tex]
Which equation represents a decomposition reaction?
O 4P +502 → 2P205
O H2SO4 + 2NaOH → Na2SO4 + 2H2O
O 2C8H18 + 2502 → 16CO2 + 18H2O
O 6NaNO3 → 6NaNO2 + 302
There are various type of chemical reactions in chemistry like combination reaction , displacement reaction. One of these is the decomposition reaction. The correct option is option D.
What is decomposition reaction?Decomposition reaction is the one in which molecules breaks down in its constituent in presence of energy. Energy can be in any form, it can be light energy , heat energy.
Decomposition of water is done by providing electricity and the reaction is called electrolysis. Lysis means to break. To give decomposition reaction molecule must have more than one element.
The fourth reaction describe a decomposition reaction (NaNO3 decomposed to become NaNO2 and O2). First and third reaction are considered combustion reaction (reacting with oxygen). Second reaction is acid-base reaction.
Therefore, the correct option is option D.
To learn more about decomposition reaction, here:
https://brainly.com/question/13134296
#SPJ2
