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jeyben [28]
3 years ago
7

Substances made of two or more elements which are not chemically bonded are known as

Chemistry
1 answer:
11111nata11111 [884]3 years ago
8 0
Substances that are not chemically bonded are mixtures.
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Question 1 A student made measurements on some electrochemical cells and calculated three quantities: The standard reaction free
Zinaida [17]

Answer:

Explanation:

for spontaneous reaction,

ΔG is negative

K>1

E > 0

cell A:

ΔG and EO suggests that reaction is spontaneous. But K is less than 1.

Hence K is wrong

cell B:

ΔG and EO suggests that reaction is non spontaneous .But K is greater than 1.

Hence K is wrong

cell C:

E and K suggest than reaction is non spontaneous but ΔG suggest that reaction is spontaneous.

Hence ΔG is wrong

4 0
4 years ago
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Barium chloride and sodium sulfate react according to the following equation. BaCl 2 + Na 2SO 4 → BaSO 4 + 2NaCl Answer the foll
Orlov [11]
Answer 88.8 g.


See attached work:

4 0
3 years ago
What is another name for a flask
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Answer:

Bottle, thermos, container, vessel

Explanation:

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3 years ago
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Describe how fossil fuels are converted into usable energy<br> :)
mixer [17]

Answer:

Fossil fuel power plants burn coal or oil to create heat which is in turn used to generate steam to drive turbines which generate electricity.

Explanation:

Fossil fuels are used in power plants to make steam. Steam drives turbines which coupled to generator produce electrical energy. Electrical power is used in all industries, domestic used where energy is needed.

petroleum products like oil, gas are used in motor vehicles, ships, airplanes. They burn and give the power for transport.

Fossil fuels are burned under different conditions in engines, boilers, etc which produce heat energy and then converted into mechanical energy.

gas and oil are used to heat homes.

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3 years ago
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Which cohesive forces are the strongest in water?
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When cohesive force is stronger than the adhesive force: concave up meniscus, water forms droplets on surface

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