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3 years ago

A chemical reaction in which compounds break up into simpler constituents is a _______ reaction.

Chemistry

2 answers:

Novay_Z [31]3 years ago

8 0

The answer to this question is A. decomposition.

const2013 [10]3 years ago

4 0

<span>A chemical reaction in which compounds break up into simpler constituents is D. decomposition. This should be an obvious answer - when something decomposes, it falls apart and creates smaller parts of the original thing. The same thing goes with the compounds - they will fall apart into constituents that are way simpler than them. </span>

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What did early Greeks believe the world was made of

timurjin [86]

Answer: made up of an infinite number of indestructible atoms in unpredictable motion.

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2 years ago

Silicon carbide (SiC) is an important ceramic material made by reacting sand (silicon dioxide, SiO2) with powdered carbon at a h

makkiz [27]

Answer:

Percent yield of SiC is 77.0%.

Explanation:

Balanced reaction: $SiO_{2}+3C\rightarrow SiC+2CO$

Molar mass of SiC = 40.11 g/mol

Molar mass of $SiO_{2}$ = 60.08 g/mol

So, 100.0 kg of $SiO_{2}$ = $\frac{100.0\times 10^{3}}{60.08}$ moles of $SiO_{2}$ = 1664 moles of $SiO_{2}$

According to balanced equation, 1 mol of $SiO_{2}$ produces 1 mol of SiC

Therefore, 1664 moles of $SiO_{2}$ produce 1664 moles of SiC

Mass of 1664 moles of SiC = $(1664\times 40.11)g$ = 66743g = 66.74 kg (4 sig. fig.)

Percent yield of SiC = [(actual yield of SiC)/(theoretical yield of SiC)] $\times 100$ %

= $\frac{51.4kg}{66.74kg}\times 100$ %

= 77.0%

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2 years ago

What is the hydroxide ion concentration in a water solution that has a hydronium ion concentration of 5.36*10-8 M?

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2 years ago

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kondaur [170]

Answer:

The atoms of some elements share electrons because this gives them a full valence shell just like the nobal gases GOOD LESSONS ♡

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3 years ago

An object that has the ability to do work has __________ energy.

Harrizon [31]

Answer:

potential

Explanation:

How to calculate potential energy. Energy refers to the ability of an object or system to perform work. It comes in many forms, including mechanical, thermal, chemical, nuclear and others.

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1 year ago