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amm1812
3 years ago
8

What are compounds?

Chemistry
1 answer:
hodyreva [135]3 years ago
8 0
I think the correct answer is option A. Pure substances can be considered as compounds. Compounds are molecules made of atoms from different elements held together by chemical bonds. Pure substances are these compounds that exist alone no other substance.
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Identify the products in the following chemical resction 2NaHCO3 + CaCI2 --> CaCO3 + CO2 + 2NaCI + H2O​
Radda [10]

the products are:

CaCO3 Calcium Carbonate

CO2 carbon dioxide

NaCI Sodium chloride

H2O​ Water

8 0
3 years ago
Name four products of incomplete combustion<br><br> 1 - ____<br> 2 -____<br> 3 -____<br> 4 -_____
faltersainse [42]

Answer:

Carbon Monoxide / Carbon Dioxide / Sulfur  and Nitrogen Dioxide

Explanation:

3 0
3 years ago
Consider the reaction: 2 SO2(g) + O2(g) &lt;----&gt; 2 SO3. If, at equilibrium at a certain temperature, [SO2] = 1.50 M, [O2] =
vlada-n [284]

Answer:

5.79

Explanation:

The following data were obtained from the question:

Concentration of SO2, [SO2] = 1.50 M

Concentration of O2, [O2] = 0.120 M

Concentration of SO3, [SO3] = 1.25 M

Equilibrium constant, (K) =..?

The balanced equation for the reaction is given below:

2SO2(g) + O2(g) <==> 2SO3(g)

From the balanced equation, the equilibrium constant K is written as follow:

K = [SO3]²/ [SO2]²• [O2]

With the above, the value of the equilibrium constant, K can be obtained as follow

K = [SO3]²/ [SO2]²• [O2]

K = (1.25)² / (1.50)² × 0.120

K = 1.5625 / ( 2.25 x 0.120)

K = 5.79

Therefore, the equilibrium constant is 5.79.

7 0
3 years ago
What would most likely happen when a metal is heated?
DENIUS [597]
It will melt

This is because the molecules in the metal begin to move faster and faster turning from solid to liquid
3 0
2 years ago
How many moles of atoms are in 376.2 g S?
Marizza181 [45]
There are 69 moles in 376.2 g s
4 0
3 years ago
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