Answer:
Diversification and adaptive radiation.
Explanation:
would dissolving sugar in water be a physical or chemical change
Answer:
Physical!!!!!
Good Luck!
WILL GIVE 20 POINTS AND MARK BRAINLIEST IF YOU ARE RIGHT!!
Fill in the next verse of the song:
I see a little silhouetto of a man ________________
PLEASE HELP
The Octet Rule explains why
A. Atoms form chemical bonds to create compounds
B. The electronegativity of fluorine is higher than chlorine
C. Ionic compounds have high boiling and melting points
D. Valence electrons are used in chemical bonding
E. Valence electrons are used in chemical bonding
It's not D that's all I know. Please answer with an explanation if you know.
Answer:
Explanation:
E
A massless length of twine can withstand a maximum tension of 490 N. The twine is used to spin a 28-kg ball in horizontal circular motion of radius 1.8 m. The ball is spun faster and faster until the twine breaks. What was the maximum speed of the ball?
7.2 m/s
3.2 m/s
5.6 m/s
11 m/s
Answer:
5.6 m/s
Explanation:
Which is NOT a shape of epithelial cells?
A.Cuboidal
B.Columbar
C.circular
D.squamous
which statement is a scientific law
Answer:
It is b
Explanation:
What are the two factors that can affect the current in a wire
Answer:
I know one of them is definitely material but the second one could be length or thickness....
Hope this helps
.....also I got my answer on google if you want to look it up to make sure I'm right......
Which characteristic is common to all inner planets?
rings
moons
rocky surfaces
slow revolutions
|` ` All Inner Planets Have : ` `|
|` ` Rocky Surfaces! ` `|
|` ` Mark Brainliest for 10 Thanks <3 ` `|
Answer:
the answer is c
Explanation:
rocky surfaces
Convert 2.5 x 102km to mm.
Convert 188 dL to L
Can y’all give me 5 facts about this
plssss helppp
will mark brainliest
Answer:
high melting point
Explanation:
high melting point
Please no fakes this is the last of my points please try really hard to figure out this problem. if you don't get it go to another person question then answer it please just dont say idk. im beggin you!!! :(
You are making a measurement using meters and find that the number value is 10. What is the correct way to write this scientific measurement?
A. meters
B. 10
C. 10 meters
D. Meters 10
Answer:
The answer is...C
Explanation:
10 meters... because you won't just say your answer is ten or neither can just put meter.
The correct way to write this scientific measurements is 10 meters
What is the correct name and HELPPP!!
What is the name and formula of an ionic compound containing the element with the
atomic number of 5 bonded to Carbonate? *
Boron Carbonide; B2(CO3)3
Boron Carbonate; B,CO,
Boron Carbide; B,CO,
Boron Carbonate; B2(CO3)3
Answer:
Boron Carbonate; B₂(CO₃)₃
Explanation:
For names, carbonide does not exist; that rules out the first option. Carbide refers to just a carbon atom, not carbon and oxygen as in the polyatomic ion carbonate. That rids us of the third option. We are left with boron carbonate with the formula BCO or boron carbonate with the formula B₂(CO₃)₃.
Recall the carbonate polyatomic ion's formula: CO₃²⁻
Thus BCO cannot be the formula.
Option 4 is your answer, Boron Carbonate; B₂(CO₃)₃.
To further check your answer, observe the oxidation states of boron and the polyatomic ion carbonate. Boron can exist in oxidation states of either 2+ or 3+, and carbonate is only 2-; in this formula, boron will exhibit a 3+ state to balance out with carbonate.
2x3+ = 6+; 3x2- = 6-
6+ + 6- = 0; balanced
I need help please （o´・ェ・｀o）
Tantalum: 2
Niobium: 3
Dubnium: 1
Please make brainliest ?
How long does it take to melt a single brick, how many mins?
Answer:
it depends upon the material used to make the brick
A student reports the following measurements for a set of pennies: 102.0mL, 91.0 g. What is the density of the pennies.
Answer:
V = 102.0 ml
m = 91.0 ml
density = ...?
density = m / V
= 91.0 / 102.0
= 0.89215 g/ml
The rate of change of position (or distance traveled) with respect to time"
Answer:
Velocity...I believe
Answer: velocity or meters per second
Explanation:
How would an element on the left side of row 2 of the periodic table differ from an element in the middle of the same row?
A. The element on the left would have more atomic mass.
B. The element on the left would have less malleability.
C. The element on the left would have a lower melting point.
D. The element on the left would have no metallic properties.
Answer:
C
Explanation:
An element on the left side of row 2 of the periodic table differ from the middle element of the same row because they have a lower melting point.
What is melting point?It is that point where solid state of a substance changes to liquid state.
In the second row of period table as we move towards right from the left side i.e. from Lithium (Li) to Neon (Ne) atomic mass of the elements increases simultaneously melting point of that elements also increases, due to bulkiness.
Hence option (c) is correct .i.e. elements on the left would have a lower melting point.
To know more about the melting point, do visit the below link:
https://brainly.com/question/40140
A wave that travels at the speed of light and consists of a combined electric and magnetic effect
Answer:
Electromagnetic waves
Explanation:
The description given is that of an electromagnetic wave.
Electromagnetic waves are propagated by the vibration of electrical and magnetic fields in a perpendicular direction to one another.
These waves generally travel at the speed of light. They are made up of magnetic and electric fields. They do no require a material medium for their propagationThey can pass through a vacuum.sedimentary rocks that are formed from physical/chemical process within the earth are given the general name of
Answer:
cementation
Explanation:
part of the rock cycle
The sedimentary rocks that are formed from physical/chemical process within the earth are given the general name of chemical precipitation.
What do you mean by the chemical precipitation ?Chemical precipitation is the process of turning a liquid into a solid by either making the liquid insoluble or making it very saturated.
Chemical precipitation, which starts when water moving through rock dissolves part of the minerals, creates chemical sedimentary rocks. When the water evaporates, the minerals are finally redeposited or precipitated after being moved away from their source.
A chemical compound that develops when the solution it was dissolved in, often water, evaporates and leaves the compound behind is known as a chemical precipitate.
Thus,Chemical precipitation is the process that gives rise to chemical sedimentary rocks including limestone, halite, and flint.
To learn more about the chemical precipitation, follow the link;
https://brainly.com/question/13859041
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A candy bar has ____ energy.
A. Kinetic
B. Potential
Answer:
Potential energy
Explanation:
A candy bar has carbs, sugars, and calories which are potentially going to be used as energy in a body.
Answer:
B. Potential
Explanation:
Because the candy bar is sitting still.
Examine the layers of rock. How does layering provide evidence for determining geologic age?
Answer:
the deeper you go down in to the rock the older the fossils get.
Explanation:
layering can provide evidence because the deeper you go down in to the rock the older the fossils get. So when the scientists go in to the rock they can say what animals lived in that time and what animal was the oldest.
1. Carson completed conductivity testing on the solutions shown in the data table below and recorded his findings in the conductivity column. After determining which solutions conducted electricity and which solutions did not conduct electricity, Carson needs to explain his findings so that he can make predictions about conductivity in the future without having to complete the testing. Why do some of the solutions conduct electricity and some of the solutions not conduct electricity?
Results of conductivity testing: image
Consider Carson's findings, then make a claim to answer the question. Be sure to support your claim with sufficient evidence and reasoning.
Answer:
See below :)
Explanation:
There is an evident reason why some of the solutions Carson's has listed and observed, does conduct electricity and some that do.
A flow of electrical charge is called an electric current. Ions are atoms, or sets of atoms, that contain an electrical charge. There are two types of ions, cation or a positively charged ion containing a deficiency of electrons, and anion or a negatively charged ion which contains a surplus of electrons. When a solution conducts electricity the charge is carried within by ions that move through the solution. The larger the number of ions in the solution, the better the conductivity of the solution is. Pure water does not conduct very well because it contains very few ions, but when table salt (NaCl) is dissolved in the water, this solution does conduct well because the solution contains a more abundance of ions. The majority of the ions come from the table salt, chemically names sodium chloride. Because Sodium contains its sodium ions, and these are positive charge and chloride ions which is a negative charge, it is called an ionic substance. Not every substance is made up of ions, one such example is sugar (C12H22O11). Sugar is made up of uncharged particles also called molecules. Although sugar is a substance its molecules do not hold a charge, thus when sugar is dissolved in water, the solution does not conduct electricity, due to the lack of ions in the solution.
Therefore, depending on the ions that make up the compound, the substance would or would not conduct electricity.
what type of data do you need to find the density of an object
Which statement best describes two functions of blood?
Answer:
flows through your viens and moves to your blood vesils
Explanation:
its how blood operates
Many elements will try to obtain ____ electrons in their outermost energy level (which is very stable) because filling it in may require too much energy.
A: 2
B: 6
C: 12
D: 8
E: 4
Which gas sample contains the most molecules ?
Answer:
CO2
Explanation:
(a) CO2; according to Avogadro's Hypothesis, they all contain the same number of particles, therefore, the heaviest molecule, CO2 (molar mass = 44), will have the greatest mass. (b) all the same; at the same temperature all gases have the same kinetic energy.
Match each term with the correct description below.
1. what is a charged atom that has gained one or more electrons?
2. What substance is held together by ionic bonds?
3. What metal and nonmetal transferrers electrons?
4. What particle has electrons that are shared unequally?
5. What forms when atoms share electrons by covalent bonds?
6. What two nonmetals share electrons?
7. What charge atom that has lost one or more electrons?
8. What two or metals "pooling" electrons?
a. metallic bond
b. covalent bond
c. anion
d. ionic bond
e. molecule
f. cation
g. compound
h. polar molecule
Answer:
1. anion
2. compund
3. ionic bond
4. polar molecule
5. molecule
6. covalent bond
7. cation
8. metallic bond
Explanation:
The radioactive isotope used in the dating of fossils thought to be less than 40,000 years old is ________________.
Fill in the blank.
Answer:
The answer is Radiocarbon
what is the electron configuration for lithium
Answer:
2,1
Explanation:
the electron configuration is 2s1
