Which of the following gases is NOT found in Earth’s atmosphere?

Chemistry

2 answers:

netineya [11]2 years ago

5 0

D. all of the above are in the atmosphere

Andrew [12]2 years ago

4 0

The answer is D. All of the above.

You might be interested in

Anything with mass creates gravity, but the amount of gravity is proportional to the amount of mass.

gayaneshka [121]

Answer:

Explanation:

The amount of gravity is directly proportional to the amount of mass of the objects and inversely proportional to the square of the distance between the objects. Gravity is a force that increases the velocity of falling objects - they accelerate.

6 0

3 years ago

Read 2 more answers

Which igneous rock is an extrusive rock?

maria [59]

Basalt, rhyolite, andesite, and obsidian could all be answers.

6 0

3 years ago

What is the volume of an object with the mass of 7.9 grams in the density of 2.28g/ml.

Schach [20]

Answer:

3.7mL is the volume of the object

Explanation:

To convert the mass of any object to volume we must use density that is defined as the ratio between mass of the object and the space that is occupying. For an object that weighs 7.9g and the density is 2.28g/mL, the volume is:

7.9g * (1mL / 2.28mL) =

<h3>3.7mL is the volume of the object</h3>

7 0

2 years ago

What mass of H2 is needed to react with 8.75 g of O2 according to the following equation: O2(g) + H2(g) → H2O(g)?

alina1380 [7]

Mass of H₂ needed to react with O₂ : 1.092 g

<h3>Further explanation</h3>

The concentration of a substance can be expressed in several quantities such as moles, percent (%) weight / volume,), molarity, molality, parts per million (ppm) or mole fraction. The concentration shows the amount of solute in a unit of the amount of solvent.

Reaction

O₂(g) + 2H₂(g) → 2H₂O(g)

mass of O₂ : 8.75 g

mol O₂(MW=32 g/mol) :

$\tt \dfrac{8.75}{32}=0.273$