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Romashka [77]
3 years ago
15

start out as one kind of rock, but large amounts of pressure and heat change them into a different kind.

Chemistry
1 answer:
Eddi Din [679]3 years ago
6 0

Answer:

Metamorphic

Explanation:

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Methanol (methyl alcohol, CH₃OH), is a very important industrial chemical. Formerly, methanol was prepared by heating wood to hi
katrin [286]

Answer:

CO(g) + 2H₂(g) → CH₃OH(l)

Explanation:

Carbon monoxide has molecular formula CO, molecular hydrogen has formula H₂, and methanol is CH₃OH.

The reactants are CO and H₂ and the product CH₃OH:

CO(g) + H₂(g) → CH₃OH(l)

To balance the equation, the elements must have the same amount on each side. C and O are balanced, but there is 4H in the product and only 2 in the reactant, so we multiply H₂ for 2:

CO(g) + 2H₂(g) → CH₃OH(l)

And the equation is balanced.

4 0
3 years ago
What two elements are used to make a laser pen light?
irina1246 [14]

Answer:

Helium and Neon

Explanation:

6 0
3 years ago
The actual yield of a certain reaction is 44.0 g, while the theoretical yield is 50.0 g. Calculate the percent yield.
Goshia [24]
Percent yield represents to what extent the reaction runs to completion. In this, the theoretical yield is 50 grams (100% completion).

To calculate percent yield, divide the actual by the theoretical. In doing so, the percent yield is 88% (44/50).
3 0
3 years ago
Read 2 more answers
Sierra did 500 J of work to move her couch. If she exerts 250 N of force on the couch, How fat did she move it? (Work: W = Fd
Elodia [21]
W=F*d

W= 500 J
F = 250 N

500 J = 250 N * d
d= 500J/250 N = 2 J/N = 2(N*m)/N = 2 m
Answer is 2 m.
7 0
3 years ago
A____is a prediction about the outcome of a test or experiment.
Annette [7]

Answer:

hypothesis is the answer

Explanation:

4 0
3 years ago
Read 2 more answers
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