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hammer [34]
3 years ago
15

A compound is a substance composed of two or more elements that are

Chemistry
1 answer:
Bad White [126]3 years ago
4 0
Made of two or more diffrent elements cheamically bonded together.

Hope this helps
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Please help me with this. (: I'd appreciate it.
Soloha48 [4]

Answer:

The answer to your question is:  ΔH = -283 kJ/mol, first option

Explanation:

Reaction

                CO  +  O₂     ⇒     CO₂

ΔH = ∑H products - ∑H products

ΔH = -393.5 - (-110.5 + 0)

ΔH = -393.5 + 110.5

ΔH = -283 kJ/mol

4 0
2 years ago
Hey need help. this is ONE question a 4 part one though. pls help
shusha [124]
I don’t get it. What is the question asking?
3 0
3 years ago
Read 2 more answers
Which energy change occurs during boiling?
neonofarm [45]
Heat energy is absorbed by the substance.
4 0
3 years ago
Read 2 more answers
(e)
mars1129 [50]

Answer:36g

Explanation:6.8:3.6=68:x

x=68*3.6/6.8=36

5 0
3 years ago
What is the volume, to the nearest whole cubic inch, of a cylinder with a height of 10 inches and a radius of 8 inches? Use Pi =
omeli [17]

Answer:

v=2010 inches^3

Explanation:

The volume of a cylinder can be found using:

v=\pi r^2h

We know the height is 10, the radius is 8, and we can substitute 3.14 in for pi

v=3.14(8^2)(10)

Solve the exponent first

v=3.14(64)(10)

v=3.14(640)

v=2009.6

To the nearest whole number:

v=2010 inches^3

4 0
3 years ago
Read 2 more answers
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