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solmaris [256]
3 years ago
14

The Germans were the first to send up a satellite into space.

Chemistry
2 answers:
vladimir2022 [97]3 years ago
8 0

Answer: Thats false the Russians were the first

Explanation:

Luda [366]3 years ago
7 0

Answer:False

Explanation:Because during the cold war between the Russians and the U.S. the Russians were the first to send a satellite and the U.S. were the first to send a man

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3 years ago
A sample of a substance was determined and contained 1.0g of mg and 1.75g of o. what is the empirical formula? (10 pts)
Juliette [100K]
<span>Total mass = 2.75g Mass % of Mg = 1.0g x 100/2.75g = 36.36 % Mass % of O = 1.75g x 100/2.75g = 63.64 % Mol of Mg = 36.36/24 = 1.515 Mol of O = 63.64/16 = 3.977 Ratio of Mol of Mg and O in the substance = (1.515 : 3.977) x 2 = 3 : 8 The empirical formula of substance is Mg3O8</span>
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solong [7]

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