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IgorLugansk [536]
3 years ago
7

A reaction which needs to gives off energy to complete the chemical reactions is called an

Chemistry
1 answer:
Airida [17]3 years ago
7 0
<span>A reaction which needs to gives off energy to complete the chemical reactions is called an EXOTHERMIC reaction !!</span>
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1. Balance the chemical reaction for the production of hydrogen cyanide: __ NH3(g) + __ O2(g) + __ CH4(g) → __ HCN(g) + __ H2O(g
Solnce55 [7]
<span>2 NH</span>₃<span> + 3 O</span>₂<span> + 2 CH</span>₄<span> </span>⇒<span> 2 HCN + 6 H</span>₂<span>O
2mol                     :           2mol
34g                       :           54g
25,1g                    :           x

x = (25,1g * 54g) / 34g </span>≈ 39,9g<span>
</span>
5 0
3 years ago
CAN SOMEONE PLEASE HELP!
katrin [286]

Answer:C

Explanation: they break apart into ions as they dissolve into solution this process is known as dissociation.

3 0
2 years ago
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Which of these is true about pure substances? They can only contain one type of molecule. They may contain one type of atom or o
Murljashka [212]
I believe it is D. They can contain different types of atom the can contain different type of arms and molecule
3 0
2 years ago
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Which commercial technology commonly uses plasmas? a radio a race car a television a microwave oven
OleMash [197]

Answer:

a television

Explanation:

A television utilizes plasma in its plasma display screen.

3 0
3 years ago
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A chemist wants to produce 12.00 grams of barium sulfate by reacting a .6000 M BaCl2 solution with excess H2SO as show in the re
worty [1.4K]
Find the moles of BaSO4 first. Then since we know it's a one to one ratio from barium chloride to barium sulfate we can just solve for liters.
<span>First you need to find the moles BaSO4 , and the you will require to find barium sulfate in liters.

</span>12.00gBaSO4 / 233.31 grams per mole

=.05141moles

Molarity=moles/liters

Hence,

Liters=.05141moles/.6Molarity
=.85 liters
7 0
3 years ago
Read 2 more answers
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