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3 years ago

Explain why a tire or ballon expands when air is added

Chemistry

1 answer:

iogann1982 [59]3 years ago

3 0

Answer:

The pressure of a gas is the force that the gas exerts on the walls of its container.

Explanation:

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The arrows in the chart below represent phase transitions.

Lana71 [14]

Answer:

a. 1,2,and 3.

Explanation:

When something turns liquid, e.g. metal, you need to heat it. When something turns gas, e.g. water, you need to heat it. And when something goes directly from solid to gas, e.g. dry ice, carbon dioxide, you need to add heat to it. hope this helps! Please mark brainiest.

4 0

3 years ago

3. The formula for table salt is NaCl. Is table salt ionic or covalent? Explain

d1i1m1o1n [39]

Answer:

it's an ionic compound

7 0

3 years ago

What is the atomic mass of copper?

kipiarov [429]

Answer:

63.546 u

Explanation:

4 0

3 years ago

What is the function of a Mitochondrion

gladu [14]

Answer:

Explanation:

Function. The mitochondrion is the site of ATP synthesis for the cell. The number of mitochondria found in a cell are therefore a good indicator of the cell's rate of metabolic activity; cells which are very metabolically active, such as hepatocytes, will have many mitochondria.

6 0

3 years ago

Quinine, an antimalarial drug, is 8.63% nitrogen. There are two nitrogen atoms per molecule. What is the molecular weight of qui

Furkat [3]

Answer:

324.18 g/mol

Explanation:

Let the molecular mass of the antimalarial drug, Quinine is x g/mol

According to question,

Nitrogen present in the drug is 8.63% of x

So, mass of nitrogen = $\frac {8.63}{100}\times x$

Also, according to the question,

2 atoms are present in 1 molecule of the drug.

Mass of nitrogen = 14.01 amu = 14.01 g/mol (grams for 1 mole)

So, mass of nitrogen = 14.01×2 = 28.02

These 2 must be equal so,

$\frac {8.63}{100}\times x=28.02$

solving for x, we get:

6 0

4 years ago