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Law Incorporation [45]
3 years ago
14

Which of the following is a compound machine?

Chemistry
2 answers:
SashulF [63]3 years ago
8 0
A bicycle is a compound macgine
il63 [147K]3 years ago
6 0
Compound= many parts together therefore bike is the answer
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How many moles are in 12 gr of magnesium?
myrzilka [38]

Answer: 0.5 mole Mg

Explanation: solution:

12 g Mg x 1 mole Mg / 24 g Mg

= 0.5 mole Mg

5 0
3 years ago
Can u please help me with these 2 answers!
Lelu [443]
5 is 2 I’m not sure about 4 though....
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Which part of the body contains enzymes that break down protein? A. Skin B. Brain C. Stomach D. Teeth
kiruha [24]

either c or d but more likely d because food is mainly broken down in your stomach
8 0
3 years ago
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What is the percentage error of a length measure of 0.229 cm if the correct value is 0.225 cm
olchik [2.2K]
((|Vtrue-Vobserved|) / (Vtrue)) x 100

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3 years ago
Calculate the volume of hydrogen if you have 12.1 moles of Hydrogen.
vodomira [7]

To Find :

The volume of 12.1 moles hydrogen at STP.

Solution :

We know at STP, 1 mole of gas any gas occupy a volume of 22.4 L.

Let, volume of 12.1 moles of hydrogen is x.

So, x = 22.4 × 12.1 L

x = 271.04 L

Therefore, the volume of hydrogen gas at STP is 271.04 L.

8 0
2 years ago
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