1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
makkiz [27]
3 years ago
15

PLEASE HELP!!!!! I need help with this question!

Chemistry
1 answer:
Ivahew [28]3 years ago
8 0

Answer:

Exothermic Reaction

Explanation:

Its a combustion reaction and they are always exothermic in nature.

You might be interested in
...................................................................
neonofarm [45]

Answer:

Imao ;/

Explanation:

5 0
3 years ago
Read 2 more answers
Does temperature change during a chemical reaction?​
Anarel [89]

Answer: yes

Explanation:

Not all the time, but temperature change can happen during a chemical reaction.

4 0
3 years ago
Read 2 more answers
In acidic solution, the sulfate ion can be used to react with a number of metal ions. One such reaction is SO42−(aq)+Sn2+(aq)→H2
allsm [11]

Answer:

The final balanced equation is :

SO_4^{2-}(aq)+4H^+(aq)+Sn^{2+}(aq)\rightarrow H_2SO_3(aq)+H_2O(l)+Sn^{4+}(aq)

Explanation:

SO_4^{2-}(aq)+Sn^{2+}(aq)\rightarrow H_2SO_3(aq)+Sn^{4+}(aq)

Balancing in acidic medium:

First we will determine the oxidation and reduction reaction from the givne reaction :

Oxidation:

Sn^{2+}(aq)\rightarrow Sn^{4+}(aq)

Balance the charge by adding 2 electrons on product side:

Sn^{2+}(aq)\rightarrow Sn^{4+}(aq)+2e^-....[1]

Reduction :

SO_4^{2-}(aq)\rightarrow H_2SO_3(aq)

Balance O by adding water on required side:

SO_4^{2-}(aq)\rightarrow H_2SO_3(aq)+H_2O(l)

Now, balance H by adding H^+ on the required side:

SO_4^{2-}(aq)+4H^+(aq)\rightarrow H_2SO_3(aq)+H_2O(l)

At last balance the charge by adding electrons on the side where positive charge is more:

SO_4^{2-}(aq)+4H^+(aq)+2e^-\rightarrow H_2SO_3(aq)+H_2O(l)..[2]

Adding [1] and [2]:

SO_4^{2-}(aq)+4H^+(aq)+Sn^{2+}(aq)\rightarrow H_2SO_3(aq)+H_2O(l)+Sn^{4+}(aq)

The final balanced equation is :

SO_4^{2-}(aq)+4H^+(aq)+Sn^{2+}(aq)\rightarrow H_2SO_3(aq)+H_2O(l)+Sn^{4+}(aq)

4 0
3 years ago
How many atoms of hydrogen are there in 18g of water ?
Bingel [31]

Answer:

They are 1.204×10^24 atoms of hydrogen present in 18 grams of water. In order to calculate this,it is necessary to compute the number of hydrogen moles present in the sample.

6 0
2 years ago
What happens when the atoms of a substance are regrouped?
galina1969 [7]
The one that happens when the atoms of a substance are regrouped is : a new substance is formed.
After atoms being regrouped the molecules of the original substance will be different and the substance will have different properties from those of the reactans
5 0
3 years ago
Other questions:
  • Can someone help? I wasn't at school the day we did this and I don't understand.
    7·1 answer
  • What is the mass of 3.75 moles of potassium (K)?
    12·1 answer
  • Using the following bond energies:
    14·1 answer
  • An empty graduated cylinder weighs 55.26 g. When filled with 50.0 mL of an unknown liquid, it weighs
    5·1 answer
  • The temperature at which a substance in its solid state melts into the same substance in a liquid is known as
    9·1 answer
  • when a piece of potassium metal is placed in water a violent reaction occurs. when copper metal is placed in water nothing happe
    8·1 answer
  • Which would increase the rate of dissolving salt into water?
    15·1 answer
  • A chemist determines by measurements that moles of nitrogen gas participate in a chemical reaction. Calculate the mass of nitrog
    12·1 answer
  • The abundance of coyotes has led to the killing of several cows
    7·2 answers
  • A 0.704-9 sample of a colorless liquid was vaporized in an evacuated 250-ml. flask at 121°C to give a pressure of 786 mmHg. What
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!