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WINSTONCH [101]
3 years ago
7

Which statements correctly describe atmospheric pressure?

Chemistry
1 answer:
djyliett [7]3 years ago
7 0
Answer: Atmospheric pressure is the force per unit area exerted by the weight of the atmosphere.
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How many moles would be equal to 22.4 g of CO2?
Rzqust [24]

Answer:

Number of moles = 0.51 mol

Explanation:

Given data:

Mass of CO₂ = 22.4 g

Number of moles = ?

Solution:

Number of moles of CO₂:

Number of moles = mass/molar mass

Molar mass of CO₂ = 44 g/mol

by putting values,

Number of moles = 22.4 g/ 44 g/mol

Number of moles = 0.51 mol

4 0
2 years ago
Help me plzzzzz ASAP!!!!!
lianna [129]

Answer:

The first one is synthesis

3 0
2 years ago
How many grams are in 2.40 moles of sodium hydroxide (NaOH)?
Bogdan [553]

Answer:

96g

Explanation:

Given parameters:

Number of moles of NaOH = 2.4moles

Unknown:

Mass of NaOH = ?

Solution:

The mass of a substance given the number of moles can be found using the expression below;

     Mass of NaOH  = Number of moles x molar mass;

  Molar mass of NaOH  = 23 + 16 + 1 = 40g/mol

Now input the parameters and solve;

    Mass of NaOH  = 2.4 x 40  = 96g

5 0
2 years ago
The chemical symbol for sodium is
serg [7]
Sodium- Na
most active element- Fluorine
lightest element- Hydrogen
7 0
3 years ago
Which of the following is true about an abiotic resource?
aev [14]

Answer:

B. It is a nonliving resource.

Explanation:

The definition of abiotic is "nonliving," and examples of abiotic resources may include soil or water.

5 0
3 years ago
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