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Oxana [17]
3 years ago
9

List two physical properties of a ball

Chemistry
2 answers:
ikadub [295]3 years ago
7 0
One propertie is that it's round.
Paha777 [63]3 years ago
3 0
Round,
color,
density...
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Federico is lifting weights at the gym. As he starts exercising, his body responds by changing his heart rate and his respirator
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During exercise , his body responds by an increase in the heart rate and his

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<h3>What is Exercise?</h3>

Exercise refers to the activities which are done to improve the physical

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The heart and respiratory rate are increased to ensure enough oxygen is

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2 years ago
Please help!!!!!!!!!!!!!!!!!!!
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Answer:

Your body cells use the oxygen you breathe to get energy from the food you eat. This process is called cellular respiration. During cellular respiration the cell uses oxygen to break down sugar. Breaking down sugar produces the energy your body needs.

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3 0
3 years ago
Consider two equal-volume flasks of gas at the same temperature and pressure. One gas, oxygen, has a molecular mass of 32. The o
san4es73 [151]

Answer: The ratio of the number of oxygen molecules to the number of nitrogen molecules in these flasks is 1: 1

Explanation:

According to avogadro's law, equal volumes of all gases at same temperature and pressure have equal number of moles.

According to avogadro's law, 1 mole of every substance contains avogadro's number 6.023\times 10^{23} of particles.

Thus as oxygen and nitrogen are at same temperature and pressure and are in equal volume flasks , they have same number of moles and thus have same number of molecules.

The ratio of the number of oxygen molecules to the number of nitrogen molecules in these flasks is 1: 1

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Why imparities reduces boiling point but increasing melting point​
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