B. The study of matter and energy.
Because physical science is everything that doesn't include organic things.
The Avogadro's number determines how many items make up a particular unit, such that 1 mole of a substance contains 6.022 × 10^23 items.
These items may be particles such as molecules, atoms, ions , etc
Therefore, 1 mole of anything has 6.022×10^23 items.
This number is called the Avogadro's constant and applies to all substances, and is normally used by researchers and scientists to determine the number of moles of elements and compounds.
Answer: The pressure will increase.
Explanation:
Boyle's law states that "the volume of a gas at constant temperature varies inversely with the pressure exerted on it." In other words, if there is more volume for the gas to spread, the pressure will decrease.
This also goes the opposite way, meaning with less volume the pressure will increase.
4 Ga (s) + 3 O₂ (g) → 2 Ga₂O₃ (s)
where:
(s) - solid
(g) - gas
Explanation:
At high temperature gallium (Ga) will react with oxygen gas (O₂) to produce solid gallium(III) oxide (Ga₂O₃).
Learn more about:
balancing chemical reactions
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Answer:
1.356x10⁻²¹ grams.
Explanation:
mass of carbon containing 68 atoms = 12g Carbon/6.02x10²³atoms = 1.993x10⁻²³ g/atom x 68 atoms = 1.356x10⁻²¹ grams.
