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2 years ago

Which change does an increase in heat energy cause?

Chemistry

1 answer:

Bumek [7]2 years ago

5 0

Answer:

C more collision between molecules

Explanation:

increase in heat causes increase in kinetic energy of the particles

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Phosphates are formed when phosphorus reacts with

777dan777 [17]

Answer: nitrogen

Explanation: bc

6 0

3 years ago

Which is the balanced single displacement reaction between Aluminum (Al3+) and Copper Sulfate (Cu2+(SO4)2-)

Aliun [14]

Answer:

The balanced single displacement reaction between aluminum and copper sulphate is as follows.

$2Al(s)+3CuSO_{4}(aq)\rightarrow Al_{2}(SO_{4})_{3}(aq)+3Cu(s)$

Explanation:

The given ions are as follows.

$Al^{3+}$ - Aluminium ion and copper sulfate ion.

Single displacement reaction occurs one element replaces another element.

Hence, the balanced chemical reaction is as follows.

$2Al(s)+3CuSO_{4}(aq)\rightarrow Al_{2}(SO_{4})_{3}(aq)+3Cu(s)$

<u>Oxidation half reaction:</u>

$Al\rightarrow Al^{3+}+3e^{-}$

Aluminium loses three electrons.

<u>Reduction half reaction:</u>

<u> $Cu^{2+}+2e^{-}\rightarrow Cu(s)$ </u>

Copper gain three electrons.

4 0

3 years ago

What is the reason atoms share electrons

kondaur [170]

Answer:

The atoms of some elements share electrons because this gives them a full valence shell just like the nobal gases GOOD LESSONS ♡

5 0

3 years ago

What are primary miniral nutrient in plant grawth

raketka [301]

Mark Brainliest please

Answer

There are 17 nutrients that essential for the growth of the plants. These nutrients are classified into two categories on the basis of requirement micronutrients (required in less amount) and macronutrient (required in large amount). The three primary nutrients needed for plant growth are nitrogen, phosphorous and potassium.

8 0

3 years ago

How many moles of carbon are in 7.00 x 1023 atoms of carbon?

Andru [333]

Answer:

<h2>1.16 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

$n = \frac{N}{L} \\$

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

$n = \frac{7 \times {10}^{23} }{6.02 \times {10}^{23} } = \frac{7}{6.02} \\ = 1.162790....$

We have the final answer as

<h3>1.16 moles</h3>

Hope this helps you

8 0

3 years ago