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irinina [24]
9 months ago
5

A change in _____ means that a chemical reaction has occurred. Responses A the energy and massthe energy and mass B the kinds of

atoms involvedthe kinds of atoms involved C the properties and identity of the reacting substancesthe properties and identity of the reacting substances D the energy and kinds of atoms of the reacting substances
Chemistry
1 answer:
AlladinOne [14]9 months ago
5 0

To solve such this we must know the concept of chemical reaction. Therefore the correct option is option C that is the properties and identity of the reacting substances.

<h3>What is chemical reaction? </h3>

Chemical reaction is a process in which two or more than two molecules collide in right orientation and energy to form a new chemical compound. The mass of the overall reaction should be conserved. There are so many types of chemical reaction reaction like combination reaction, double displacement reaction.

A change in the properties and identity of the reacting substances means that a chemical reaction has occurred.

Therefore the correct option is option C.

Learn more about the chemical reactions, here:

brainly.com/question/3461108

#SPJ1

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8 0
3 years ago
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The rate of disappearance of HBr in the gas phase reaction2HBr(g) → H2(g) + Br2(g)is 0.301 M s-1 at 150°C. The rate of appearanc
jok3333 [9.3K]

Answer: 0.151

Explanation:

Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.

2HBr(g)\rightarrow H_2(g)+Br_2(g

The rate in terms of reactants is given as negative as the concentration of reactants is decreasing with time whereas the rate in terms of products is given as positive as the concentration of products is increasing with time.

Rate=-\frac{1d[HBr]}{2dt}=+\frac{1d[H_2]}{2dt}=+\frac{1d[Br_2]}{dt}

Given: -\frac{d[HBr]}{dt}]=0.301

Putting in the values we get:

\frac{0.301}{2}=+\frac{1d[Br_2]}{dt}

+\frac{1d[Br_2]}{dt}=0.151

Thus the rate of appearance of Br_2 is 0.151

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3 years ago
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Based on the graph of US population and steel consumption, what could have led to the increase in steel consumption seen  on the graph is that whenever the population has increased, steel consumption has increased as well.

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Answer:

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