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Mekhanik [1.2K]
2 years ago
7

What is a reaction called that has heat as a product (gives off heat)?

Chemistry
2 answers:
alex41 [277]2 years ago
8 0

I believe the answer is Exothermic

iren2701 [21]2 years ago
4 0

Exothermic gives off heat while as endothermic takes in heat. :)

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Cecil writes the equation for the reaction of hydrogen and oxygen below.
Wittaler [7]

Answer:

C) to show that atoms are conserved in chemical reactions

Explanation:

When writing a chemical reaction, we should always consider the Mass Conservation Law, which basically states that; in an isolated system; the total mass should remain constant, this is, the total mass of the reactives should be equal to the total mass of the products

For this case, we should add the apporpiate coefficients in order to be in compliance with this law:

2H₂ + O₂ → 2H₂O

So, we can check the above statement:

For reactives (left side):

4H

2O

For product (right side):

4H

2O

5 0
3 years ago
Which wave has a disturbance that is perpendicular to the wave motion?
RideAnS [48]

transverse wave

A transverse wave is a wave in which particles of the medium move in a direction perpendicular to the direction that the wave moves.

3 0
2 years ago
A compound of a transition metal and iodine is 56.7% metal by mass.How many grams of the metal can be obtained from 630 g of thi
erma4kov [3.2K]

Answer:

357 g of the transition metal are present in 630 grams of the compound of the transition metal and iodine

Explanation:

In any sample of the compound, the percentage by mass of the transition metal is 56.7%. This means that for a 100 g sample of the compound, 56.7 g is the metal while the remaining mass, 43.3 g is iodine.

Given mass of sample compound = 630 g

Calculating the mass of iodine present involves multiplying the percentage by mass composition of the metal by the mass of the given sample;

56.7 % = 56.7/100 = 0.567

Mass of transition metal = 0.567 * 630 = 357.21 g

Therefore, the mass of the transition metal  present in 630 g of the compound is approximately 357 g

4 0
3 years ago
Which description is of the man in the graveyard?
vekshin1
B is the answer to ur question
5 0
3 years ago
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My sister is a peach" is a metaphor.<br><br><br> TrueFalse
dolphi86 [110]
Yes that is a metaphor 

6 0
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