Earth is the only planet in the Solar System with known, sustained life. Which of these things most likely enabled life on Earth to develop? (Choose 3) Responses A Presence of liquid waterPresence of liquid water B Composition of the atmosphereComposition of the atmosphere C Oxygen-rich atmosphereOxygen-rich atmosphere D Size of the Milky Way GalaxySize of the Milky Way Galaxy E Proximity of the Sun

Answers

Answer 1

The three factors A, B, and C are those that most likely allowed life to begin on Earth, Oxygen rich atmosphere.

Why does life only exist on Earth and not on any other planets in the solar system?

A section of the Planet Earth Hall. Why is the Earth a habitable planet. It is at the ideal distance from the Sun, its magnetic field shields it from dangerous solar radiation, and an insulating atmosphere keeps it warm.

What are the three ways the atmosphere affects life on Earth?

It not only protects us from harmful UV solar radiation but also gives us the oxygen we require to survive. Without it, the pressure needed for liquid water to exist on the surface of our planet would not be possible. Also, it warms our globe and maintains livable temperatures.

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Related Questions

HELPPPPP FASTTTT

Gas Stoichiometry: Putting it all together, one step at a time.

Carbon monoxide reacts with nitrogen monoxide to produce nitrogen gas and carbon dioxide. The skeleton equation is CO + NO ---> N2 + CO2. This is the problem: If 42.7 grams of CO is reacted completely at STP, what volume of N2 gas will be produced?

What are the coefficients from left to right in the balanced equation?
options
A. 1,1,1,1
B. 1,1,2,1
C. 2,2,1,2
D. 1,3,1,2
If you start out the reaction with 42.7 grams of CO, how many mol of CO do you have?
OPITIONS
A. 0.97 mol
B. 1.524 mol
C. 1.196 x 10^3 mol
What is the volume of 1 mol of any gas at STP?
options.
A. 2.24 L
B. 22.4 L
C. 24.2 L
D. impossible
What is the last piece of information that you need from the balanced equation to solve for the volume of N2 gas produced?
Options.
A. how many gra,s of CO2 are produced
B. what is the mol ratio CO2 to CO
C. what is the mol ratio of N2 to CO2
D. What is the mol ratio of N2 to CO?
What is the volume of N2 gas produced?
Options
A. 1.50L
B. 17.1 L
C. 51.2 L
D. 64.3L

Answers

The correct answers are: 1,1,1,1; 1.524 mol; 22.4L; the mol ratio of CO to N2 is 1:1; the volume of N2 gas produced is 34.1 L.

How to calculate the volume of a gas?

The balanced chemical equation for the reaction is:

CO + NO ---> N2 + CO2, with coefficients from left to right being 1, 1, 1, and 1. Therefore, the answer is option A.

To calculate the number of moles of CO, we need to divide the given mass by its molar mass. The molar mass of CO is 28.01 g/mol. Thus, the number of moles of CO is 42.7 g / 28.01 g/mol = 1.524 mol.Therefore, the answer is option B.

The volume of 1 mol of any gas at STP (standard temperature and pressure) is 22.4L. Thus, the answer is option B.

To solve for the volume of N2 gas produced, we need to use the coefficients in the balanced equation to determine the mole ratio of CO to N2. The coefficient for CO is 1, and the coefficient for N2 is also 1. Therefore, the mole ratio of CO to N2 is 1:1.

Since 1.524 mol of CO is reacted, an equal number of moles of N2 is produced. Thus, the number of moles of N2 is also 1.524 mol. To convert moles to volume at STP, we can use the volume of 1 mol of any gas at STP (22.4 L). Thus, the volume of N2 gas produced is 1.524 mol × 22.4 L/mol = 34.1 L. Therefore, the answer is not given in the options.

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A buffer is made by dissolving H3PO4 and NaH2PO4 in water.
Write an equation that shows how this buffer neutralizes added base.

Answers

This reaction can be represented by the following equation: H₃PO₄ + OH⁻ → H₂PO₄⁻ + H₂O

What is buffer solution?

Buffer solution resists the changes in pH when small amounts of acid/ base are added.

In the case of buffer made from H₃PO₄ and NaH₂PO₄, the H₃PO₄ will act as weak acid, and NaH₂PO₄ will act as its conjugate base.

When base is added to this buffer solution, it will react with weak acid (H₃PO₄) to form its conjugate base (H₂PO₄⁻ ) and water (H₂O). The H₂PO₄⁻ ion will then act as weak acid and react with any additional base added to buffer. This reaction can be represented by the following equation: H₃PO₄ + OH⁻ → H₂PO₄⁻ + H₂O

OH⁻ represents any hydroxide ion that may be added to the buffer solution.

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