All categories

3 years ago

NEED HELP! WILL GIVE BRAINLIEST!

Chemistry

1 answer:

gladu [14]3 years ago

8 0

Answer:

The answer to your question is below

Explanation:

See the attachment.

Synthesis ΔH

ΔH = 25 - (-30) = 25 + 30 = 55 kJ Endothermic reaction

Single reaction

ΔH = 30 - 65 = -35 KJ Exothermic reaction

Double reaction

ΔH = 60 - 10 = 50 kJ Endothermic reaction

You might be interested in

Name the compound P4O10

Delvig [45]

I believe the compound is Phosphorus pentoxide

6 0

3 years ago

Read 2 more answers

Could someone help me with this?

Varvara68 [4.7K]

Solving part-1 only

KMnO_4

Transition metal is Manganese (Mn)

Actually it's the oxidation number of Mn

Let's find how?

$\\ \tt\Rrightarrow x+1+4(-2)=0$

$\\ \tt\Rrightarrow x+1-8=0$

$\\ \tt\Rrightarrow x-7=0$

$\\ \tt\Rrightarrow x=+7$

x is the oxidation number

Purple as per the color of potassium permanganate

$\boxed{\begin{array}{c|c|c}\boxed{\bf Tube} &\boxed{\bf Charge} &\boxed{\bf No\:of\; electrons\: loss}\\ \sf 2 &\sf +6 &\sf 6e^-\\ \sf 3& \sf +2 &\sf 2e- \\ \sf 4 &\sf 4 &\sf 4e^-\end{array}}$

7 0

2 years ago

Describe 5 importance matter to undergo changes

Rzqust [24]

Answer:

melting, freezing, sublimation, deposition, condensation, and vaporization. These changes

Explanation:

hope it helps...i dont know if its right but i hope it helps

3 0

3 years ago

5HNO3<br> How many atoms are in this formula. Please explain step by step.

BaLLatris [955]

Explanation:

The coefficient 5 applis to each element in the molecule, so there are 5 times 1 H atom, 5 times 1 N atom, and ,since O has a 3 subscript, there are 5 times 3 O atoms. Therefore there are 25 atoms.

4 0

3 years ago

The Michaelis–Menten equation is an expression of the relationship between the initial velocity ????0 of an enzymatic reaction a

hammer [34]

1 doubling s will almost double the rate

8 0

4 years ago