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Ann [662]
3 years ago
9

Convert 78.9 kJ into calories (can you also explain how pls, ty <3)

Chemistry
1 answer:
Elza [17]3 years ago
3 0

Answer:

1 Joule=0.2390057361 Calorie

789kj=789×0.2390057361×1000

=188575.5257829calorie

Explanation:

Hope u have understand

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What is the net ionic equation for the reaction<br> ofFeCl3 and KOH in water?
Levart [38]

Answer:

Fe³⁺(aq) + 3 OH⁻(aq) → Fe(OH)₃(s)

Explanation:

First, we will write the molecular equation because it is the easiest to balance.

FeCl₃(aq) + 3 KOH(aq) → Fe(OH)₃(s) + 3 KCl(aq)

The full ionic equation includes all the ions and the molecular species.

Fe³⁺(aq) + 3 Cl⁻(aq) + 3 K⁺(aq) + 3 OH⁻(aq) → Fe(OH)₃(s) + 3 K⁺(aq) + 3 Cl⁻(aq)

The net ionic equation includes only the ions that participate in the reaction and the molecular species.

Fe³⁺(aq) + 3 OH⁻(aq) → Fe(OH)₃(s)

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Which element exhibits a crystalline<br> structure at STP?<br> 1)F<br> 2)CI<br> 3)Br<br> 4) I
umka21 [38]
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I can't find the answer for number 9/10 pleas help
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(10)an object  will continue  to travel at a constant speed unless acted by an unbalanced  force  according to newtons second law every force acted on a body has a equal and opposite reaction so the speed and the direction of the object will change.

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