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mrs_skeptik [129]
3 years ago
7

HELP I REALLY NEED HELP​

Chemistry
1 answer:
Semmy [17]3 years ago
4 0

D. you are not making any motion

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Why is the liquid oxygen machine producing less liquid oxygen than normal?
Nataly_w [17]

Answer:

Liquid oxygen evaporates at only a slightly higher temperature than liquid nitrogen because they have similarly low attraction between molecules. This would mean less liquid oxygen is coming out of tank 3 because some of it is evaporating as a gas instead.

5 0
2 years ago
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The density of gold is 19.3 g/cm3. The density of iron pyrite is 5.0 g/cm3. If a nugget of iron pyrite and a nugget of gold each
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That they are different.. because they have the same mass but different densities

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3 years ago
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A balanced equation tells you the mole ratio of all reactants and products. Using the chemical reaction below how many moles of
vichka [17]
<span>By using the mole ratio, we can determine that 2 moles of NH3 are made when 3 moles of hydrogen gas are present. The numbers in front of the chemicals tell us the relative amounts consumed and produced. Since there is a 3 in front of H2 and a 2 in front of NH3, this tells us that for every 3 moles of H2 gas used, 2 moles of NH3 are made.</span>
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3 years ago
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What would happen if you play a note in a cold day on a flute?
Maurinko [17]
I don't know if this is the answer you are looking for but it would be flat unless the player pushed the tuning slide in.
7 0
3 years ago
Imagine that small pieces of the metals copper, magnesium and iron are placed in three test tubes labeled A, B, and C, respectiv
Marizza181 [45]
A) Cu

Cu + 2HCl --> CuCl2 + H2(g)

Products predicted: Copper(II) choloride and hydrogen gas


B) Mg

Mg + 2HCl --> MgCl2 + H2

Products predicted: magnesium chloride + hygrogen gas

C) Fe

Fe +2 HCl -> FeCl2 + H2, or
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Products predicted: Iron(II) chloride, iron (III) chloride and hydrogen gas.

8 0
3 years ago
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