All categories

2 years ago

The minimum amount of energy that has to be added to start a reaction is the

1 answer:

7 0

The minimum amount of energy that has to be added to start a reaction is the activation energy, which starts the reaction. It activates it.

You might be interested in

One way in which elements differ from each other is the structure of the electron cloud in each elements Atoms in electron cloud

BartSMP [9]

Not sure what you are asking. I have two possible answers though...

It could either be more negatively charged, or valence electrons.

The more away from the nucleus a electron is, the more negatively charged it is.

The electrons on the outermost electron shell is valence electrons.

Again, I don't know what you were asking, but one of these answers may be correct.

4 0

3 years ago

Read 2 more answers

One of relatively few reactions that takes place directly between two solids at room temperature is In this equation, the in Ba(

yuradex [85]

Answer:

3.14 grams of ammonium thiocyanate must be used to react completely with 6.5 g barium hydroxide octahydrate.

Explanation:

$Ba(OH)_2.8H_2O(s)+NH_4SCN(s)\rightarrow Ba(SCN)_2(s)+8H_2O(l)+NH_3(g)$

The balance chemical equation is :

$Ba(OH)_2.8H_2O(s)+2NH_4SCN(s)\rightarrow Ba(SCN)_2(s)+10H_2O(l)+2NH_3(g)$

Mass of barium hydroxide octahydrate = 6.5 g

Moles of barium hydroxide octahydrate = $\frac{6.5 g}{315 g/mol}=0.020635 mol$

According to reaction, 2 moles of ammonium thiocyanate reacts with1 mole of barium hydroxide octahydrate. The 0.020635 moles of barium hydroxide octahydrate will react with:

$\frac{2}{1}\times 0.020635 mol=0.04127 mol$

Mass of 0.04127 moles of ammonium thiocyanate;

$0.04127 mol\times 76 g/mol=3.136 g\approx 3.14 g$

3.14 grams of ammonium thiocyanate must be used to react completely with 6.5 g barium hydroxide octahydrate

3 0

3 years ago

PLEASE HELP ME ASAP AND DONT GUESSSS!!!!!!!

Rama09 [41]

Answer:

Digestive

Explanation:

It is necessary for the body to function so it is technically an organ

3 0

2 years ago

Read 2 more answers

How many molecules are in 777.7 grams of water?

Alisiya [41]

to have the closest number rounded up

7 0

2 years ago

Which provides evidence to support the big bang theory?

Stolb23 [73]

A<span>. </span>
<span>the change in carbon dioxide levels in the atmosphere
</span>
hope that's right and hope i helped

6 0

2 years ago