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3 years ago

What three things happen in order for a chemical reaction to occur?

1 answer:

4 0

Three things that should happen for a chemical reaction to occure :
1. Position of electrons must change
2. Chemical bonds must be formed and broken between atoms and
3. No changes should happen to the nuclei

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How are temperature and heat related

vovangra [49]

Answer:

Heat is the total energy of molecules moving around. Temprature is a measure of the average energy of molecules motion.

5 0

4 years ago

Find the density of an object that has a mass of 6.13 g and volume of 1.50 cm³.

storchak [24]

Answer:

≈ 4.10 g/cm³

Explanation:

Hi there !

Density formula

d = m/V

d = 6.13g/1.5cm³

d = 4.08(6) g/cm³ ≈ 4.10 g/cm³

Good luck !

8 0

3 years ago

One property of metals is that they are: insulators brittle malleable none of these are properties of metals

wel

Metals are insulators and malleable. Hope this helps even though I'm late :)

6 0

3 years ago

HI(aq)+NaOH(aq)→ what the final balanced chemical equation with the phases included

julia-pushkina [17]

Answer:

$HI(aq)+NaOH(aq)\rightarrow NaI(aq)+H_2O(l)$

Explanation:

Hello there!

In this case, for this neutralization reaction, it is possible to realize that one the neutralization products is water (pH=7) and the other one is the salt coming up from the cation of the NaOH and the anion of the HI:

$HI(aq)+NaOH(aq)\rightarrow NaI+H_2O$

Moreover, since the solubility of NaI is large in water, we infer it remains aqueous whereas the water is maintained as liquid:

$HI(aq)+NaOH(aq)\rightarrow NaI(aq)+H_2O(l)$

Which is also balanced as the number of atoms of all the elements is the same at both sides.

Best regards!

7 0

3 years ago

Is Mg a metal non metal or noble gas

madam [21]

It is a metal
hope it helps

8 0

3 years ago