The most abundant gases in the atmosphere are _____. trace gases variable gases greenhouse gases primary gases

Answers

Answer 1

Answer: The correct answer is greenhouse gases. It is the most abundant gases among the choices in the atmosphere. These gases are water vapor, methane, nitrous oxide, ozone and carbon dioxide. Without these gases, the temperature of Earth will be about -18 degrees Celsius.

Answer 2

Answer:

Answer:

greenhouse gases

Explanation:

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Which statement best describes how a catalyst increases the rate of a reaction?(1) The catalyst provides an alternate reaction pathway with a higher activation energy. (2) The catalyst provides an alternate reaction pathway with a lower activation energy. (3) The catalyst provides the same reaction pathway with a higher activation energy. (4) The catalyst provides the same reaction pathway with a lower activation energy.
Life has existed on Earth for about 3.8 billion years despite gradual and sudden environmental changes. How do the scientific factors of sustainability help explain how life has continued to survive and evolve?
How many occupied orbitals does a fluorine atom contain in the ground state?
4 × 10-5 cm in scientific notation
2 years ago a 4.00 l flexible container holds a sample of hydrogen gas at 153 kpa. if the pressure increases to 203 kpa and the temperature remains constant, what will the volume be?

In the late 1800s, the British scientist J. J. Thomson discovered that atoms were composed of positively-charged and negatively-charged particles. He proposed that these two types of particles were evenly mixed throughout the structure of the atom. How does this atomic model differ from current atomic models?A. Current atomic models show that atoms do not have positively-charged particles.

B. Current atomic models show an atom's positively-charged particles concentrated in the center of the atom.

C. Current atomic models show that atoms do not have negatively-charged particles.

Answers

Option B.

Current atomic models show the positive charged particles (protons) concentrated in the center (nucleus) of the atom, along with the neutrons, and the negative charged particles (electrons) distributed around (far from) the nucleus.

Which of the following statements is true of the critical temperature of a pure substance?A. The critical temperature is the temperature above which the liquid phase of a pure substance can exist.
B. The critical temperature is the temperature above which the liquid phase of a pure substance cannot exist.
C. The critical temperature is the temperature below which the liquid phase of a pure substance cannot exist.
D. The critical temperature is the temperature at which all three phases can coexist.
E. The critical temperature is the temperature at which the pure substance reaches, but cannot go beyond, the critical pressure.
Can someone explain this one?

Answers

B
After temperature reaches certain treshold the difference between density of liquid and gas state disappears, and it is impossible to liquify the substance.

Answer:what do u mean tho

Explanation:

The process of combining two small nuclei into one nucleus of larger mass is called

Answers

Nuclear Fusion thats what i found

Answer: nuclear fusion

Explanation: It is a nuclear fusion because a fusion is when two join together and fission is when one thing splits into two.

Which phase of matter consists of particles that are held together but have the ability to flow past each other?

Answers

Explanation:

In solids, molecules are held together due to strong intermolecular force of attraction between them. These molecules do not move past each other as they are fixed at their position. As a result, solids have definite shape and volume.

In liquids, molecules are less tightly held as a result the molecules are able to move and hence they slide past each other. Liquids do not have fixed shape and volume.

In gases, molecules are held by weak Vander waal forces. Therefore, they move rapidly from one place to another with more collisions.

Thus, we can conclude that liquid is the phase of matter which consists of particles that are held together but have the ability to flow past each other.

liquid making it the correct answer

Which of the following are true concerning the Bohr model?

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The second answer to this is correct

Consider three gases: Ar, SF6, and Cl2. If 50.0 grams of these gases are placed in each of three identical containers, which container will have the highest pressure? The volume and temperature of all three containers are the same.

Answers

The ideal gas law:
$pV=nRT \Rightarrow p=(nRT)/(V)$
p - pressure, n - number of moles, R - the gas constant, T - temperature, V - volume

The volume and temperature of all three containers are the same, so the pressure depends on the number of moles. The greater the number of moles, the higher the pressure.
The mass of gases is 50 g.

$Ar \nM \approx 39.948 \ (g)/(mol) \nn=(50 \ g)/(39.948 \ (g)/(mol)) \approx 1.25 \ mol \n \nSF_6 \nM \approx 146.06 \ (g)/(mol) \nn=(50 \ g)/(146.06 \ (g)/(mol)) \approx 0.34 \ mol \n \nCl_2 \nM=70.9 \ (g)/(mol) \nn=(50 \ g)/(70.9 \ (g)/(mol)) \approx 0.71 \ mol$

The greatest number of moles is in the container with Ar, so there is the highest pressure.

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