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alisha [4.7K]
2 years ago
8

What is a base used in toothpaste?

Chemistry
1 answer:
Elanso [62]2 years ago
3 0

Answer: A base used in toothpaste is glycerol which is something that helps keep the toothpaste from drying out.

Explanation:

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If you have 2.1 liters of hydrogen gas (at STP), what mass of hydrogen gas would you have?
GuDViN [60]

Answer:

0.19 g

Explanation:

Step 1: Given data

Volume of hydrogen at standard temperature and pressure (STP): 2.1 L

Step 2: Calculate the moles corresponding to 2.1 L of hydrogen  at STP

At STP (273.15 K and 1 atm), 1 mole of hydrogen has a volume of 22.4 L if we treat it as an ideal gas.

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6 0
2 years ago
What happened during the Renaissance that encouraged progress in the study of matter?
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B

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