Answers
Answer:
cool
Explanation:
Related Questions
This is a sign of a chemical reaction that involves the production of bubbles or fizzing
Answers
Answer:
gas production
Explanation:
Answer:
gas formation
Explanation:
frothy bubbles produced by carbon dioxide gas are a sign that a chemical reaction has occurred when a based is mix with acid.
What element has an energy level Electron Configuration of 2-8-18-8?
Argon
Calcium
Krypton
Chlorine
Answers
answer:
krypton.
explanation:
it is a noble gas, so has full-valence shell. also, reference back to the periodic table.
-- please mark the brainliest and click the thanks button if correct :)
Bill stands in a swimming pool and notices that the water around his feet is a lot cooler than the water near the surface which process causes this difference in temperature?
1. convection
2. evaporation
3. radiation
4. conduction
Submit Answer
Answers
Answer:
convection
Explanation:
What are two sources of phosphorous?
A. stratosphere
B. Erosion
C. Cows
D. Fossil fuels
E. Fertilizer
Answers
Answer:
A. stratosphere
E. Fertilizer
Explanation:
when an ecosystem changes the results are (positive negative both or none) explain
This is science!
Answers
Answer:
C. Both
Explanation:
When an Ecosystem changes the effects can be both positive and negative. It all really just depends on what the change is.
pls do this and don't just do it for the points pls help me I need it
Answers
Answer:
what do you want me to do my friend my best friend who is a dreamer
Which of the following elements is used by your body? A) aluminum B) helium C) calcium D) all of the above
Answers
A very loud sound has a high _____.
resting point
amplitude
wavelength
bass
Answers
Answer:
Resting Point
Explanation:
Answer: amplitude
Explanation:
Some items, such as rubber, float on the water, while some items, such as gold, sink in
the water. If an item floats is it more or less dense than the water?
Answers
Answer:
If an item is less dense, it floats on the water.
Explanation:
We know this since the more dense something it usually is heavier than if it was less dense. Which ways it down resulting to it sinking.
Visible light is a part of what spectrum
Answers
Answer:
Visible Spectrum/Electromagnetic spectrum
Explanation:
The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye.
Trees, birds, and bacteria are all similar because they are all formed from
Answers
Answer:
Cells or atoms
Explanation:
Answer:
are made of one or more cells.
need energy to stay alive.
respond to stimuli in their environment.
grow and reproduce.
maintain a stable internal environment.
Explanation:
Plz brainliest
Was Dalton's Atomic Theory correct or incorrect and why?
Answers
Answer:
The indivisibility of an atom was proved wrong: an atom can be further subdivided into protons, neutrons and electrons. However an atom is the smallest particle that takes part in chemical reactions. ... According to Dalton, atoms of different elements combine in simple whole number ratios to form compounds.
What are the three eras in the geologic time scale? *
Answers
the Mesozoic
the Cenozoic
PLS HELP omg im gonna fail :')
Answers
1. How many molecules are in 643.21 grams of
Mg3(PO4)22
2. How much space (Liters) does 4.061 x 10-24
molecules of H202 take up?
3. How many H20 atoms are in 479.3 grams of
H20 gas?
4. How many grams does 80.34 L of Ca(NO3)2
weigh?
5. How many Liters of space does 893.7 grams
of CO2 take up?
643.21g
1mol
10423
262.82g
6. How many grams are in 5139 x10425
molecules of AlOH)3
1
4.061x10^24
1 mol
Answers
Answer: Calculate the molar mass of Mg3(PO4)2 in grams per mole or search for a chemical formula or substance.
Missing: 643.21 Must include: 643.21. A balloon is filled with 36.2 liters of Cl2 gas at STP. How many moles of chlorine gas are inside? Solution: 36.2
Missing: 4.061 Must include: 4.061 .For H2O, there is one atom of oxygen and two atoms of hydrogen. A molecule can be made of only one type of atom. In its stable molecular form, oxygen exists as two atoms and is written O2. to distinguish it from an atom of oxygen molecule of three oxygen atoms, in grams per mole or search for a chemical ... Did you mean to find the molecular weight of one of these similar formulas- 80.34.
Explanation: PLEASE MARK ME AS BRAINLIEST!
What is the charge of an electron?
Answers
Which statements describe the fossil record? Check all that apply.
There is very little fossil evidence for the first 4 billion years of Earth.
There is very little fossil evidence for the last 600 million years of Earth.
Most of the fossil evidence is from the first 4 billion years of Earth.
Most of the fossil evidence is from the last 600 million years of Earth.
The fossil record is complete.
The fossil record is not complete.
Answers
Geologists use fossils to date sedimentary records by placing them in the order of their specific appearance.
Answer:
A D F
Explanation:
look at attachment if you don't believe me
8. What is the molar mass of carbon dioxide, Co2(g)? How many grams of carbon
dioxide would there be for 3 moles? Explain.
Answers
Answer:
CO2 molar mass=44.01g
3 moles CO2 = 132.03g
Explanation:
CO2 molar mass = 12.01+2(16.00)=44.01g
3 moles CO2 * (44.01 g CO2)/(1 mol CO2)=132.03g
(Answer would be different depending on the number of decimals)
Help me with this pls
Answers
2. eye color
3.hight
4. the weather
5. the day of the week
That’s all I could really think of. Hope it helps!
un ejemplo de cambio físico ocurre cuando: a) horneamos pan dulce. b) endulzamos el agua de limón. c) freímos los huevos. d) tostados los granos de café.
Answers
Answer:
...
Explanation:
Guys pleasee helpp 20 points
Answers
As you move down a group of the periodic table how does the atomic radius of the atoms change
Answers
Answer:
An atom gets larger as the number of electronic shells increase; therefore the radius of atoms increases as you go down a certain group in the periodic table of elements. In general, the size of an atom will decrease as you move from left to the right of a certain period.
Explanation:
Calculate the mass of 4 moles of CuCl2.
Answers
You would add the mm of Cu and of 2 chlorine’s to get (bc Cl2).
The molar mass means that per one mile that is how much mass so :
134.45 x 4 = 537.8
____ power is generated from the heat released when uranium atoms split in a process known as fission.
Answers
Q1; ___________ have almost half a set of electrons in the outer most energy level.
1- metalloids
2- metals
3- nonmetals
Q2;________ are known to be gasses at room temperature.
1- nonmetals
2- metalloids
3- metals
Answers
Answer:
2 metalliods....
1 metals
Which of the following interactions would be the weakest?
Picture provided, 10 points. Please only answer correctly.
Answers
Answer:
D.) Li+ and C4H10
i hope it helped.
PLEASE HURRY
Which of the following is a subsurface event that takes place during the rock cycle?
Deposition
Erosion
Weathering
Plate tectonics
Answers
Answer:
Option D, Plate Tectonics
In the rock cycle, surface events takes place at the surface of earth. Thus,
weathering and erosion are surface events, while the subsurface events he take place in the deeper section of the earth . Examples of sub surface events are plate tectonics and mountain building or anything that takes place in the inner core of earth.
Explanation:
Answer:
Option D, Plate Tectonics
In the rock cycle, surface events takes place at the surface of earth. Thus,
weathering and erosion are surface events, while the subsurface events he take place in the deeper section of the earth . Examples of sub surface events are plate tectonics and mountain building or anything that takes place in the inner core of earth.
Explanation:
Option D, Plate Tectonics
In the rock cycle, surface events takes place at the surface of earth. Thus,
weathering and erosion are surface events, while the subsurface events he take place in the deeper section of the earth . Examples of sub surface events are plate tectonics and mountain building or anything that takes place in the inner core of earth.
A 2.5 L container holds a sample of hydrogen gas at 291 K and 180 kPa.
If the pressure increases to 350 kPa and the volume remains constant, what will the new temperature be?
Round your answer to one decimal place.
Answers
Answer:
The new temperature will be 565.83 K.
Explanation:
Gay Lussac's law establishes the relationship between the temperature and the pressure of a gas when the volume is constant. This law says that the pressure of the gas is directly proportional to its temperature. This means that if the temperature increases, the pressure will increase; or if the temperature decreases, the pressure will decrease.
In other words, Gay-Lussac's law states that when a gas undergoes a constant volume transformation, the ratio of the pressure exerted by the gas temperature remains constant:
[tex]\frac{P}{T} =k[/tex]
When an ideal gas goes from a state 1 to a state 2, it is true:
[tex]\frac{P1}{T1} =\frac{P2}{T2}[/tex]
In this case:
P1= 180 kPaT1= 291 KP2= 350 kPaT2= ?Replacing:
[tex]\frac{180 kPa}{291 K} =\frac{350 kPa}{T2}[/tex]
Solving:
[tex]T2=350 kPa*\frac{291 K}{180 kPa}[/tex]
T2= 565.83 K
The new temperature will be 565.83 K.
1.2 dkg to grams now I have to say extra stuff for it to submit
Answers
Answer:
12 grams and I have to write something longer so just ignore this
Which of the following is the smallest particle of matter?
A. Atom
B. Cell
C. Molecule
D. Organ
Answers
Answer:
A. Atom
Explanation:
Hope this helps !
