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
Mademuasel [1]
3 years ago
10

Explain why heat is often used in a laboratory experiment. a. To warm up the laboratory, b. To speed up a reaction

Chemistry
1 answer:
uysha [10]3 years ago
3 0

Answer:

To speed up a reaction

Explanation:

Heat, as well as catalysts, increase the reaction rate of some chemical reactions since they cause the enzymes or reagents in charge of carrying out the transformation to products to act faster and increase their kinetic energy of reaction.

You might be interested in
I will mark brainliest!
olganol [36]

Answer:

C ! :)

Explanation:

8 0
3 years ago
Read 2 more answers
The rate of disappearance of HBr in the gas phase reaction2HBr(g) → H2(g) + Br2(g)is 0.301 M s-1 at 150°C. The rate of appearanc
jok3333 [9.3K]

Answer: 0.151

Explanation:

Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.

2HBr(g)\rightarrow H_2(g)+Br_2(g

The rate in terms of reactants is given as negative as the concentration of reactants is decreasing with time whereas the rate in terms of products is given as positive as the concentration of products is increasing with time.

Rate=-\frac{1d[HBr]}{2dt}=+\frac{1d[H_2]}{2dt}=+\frac{1d[Br_2]}{dt}

Given: -\frac{d[HBr]}{dt}]=0.301

Putting in the values we get:

\frac{0.301}{2}=+\frac{1d[Br_2]}{dt}

+\frac{1d[Br_2]}{dt}=0.151

Thus the rate of appearance of Br_2 is 0.151

8 0
3 years ago
Sodium and ____ are the two primary electrolytes.Question 5 options:
Pachacha [2.7K]

C, potassium. Hope this helps.

5 0
3 years ago
Which of the following is the best definition of convection?
lara [203]
<span>a) movement of heat through space </span>
7 0
3 years ago
Read 2 more answers
Chemistry
madam [21]

Answer: 1. 3.914 × ^10-4 | 2. 4.781 × ^10-1

Explanation:

7 0
3 years ago
Other questions:
  • What is difference between primary and standard solution?
    14·1 answer
  • Metallic pan is provided with a wooden plastic handle give reason​
    6·1 answer
  • The pressure of 4.2L of nitrogen gas in a flexible container is decreased to one-half its original pressure and its absolute tem
    8·1 answer
  • Helium has two valence electrons, and these electrons sre located in the 1s subshell. Without using the periodic table, in which
    13·2 answers
  • Substances that are readily combustible or may cause fire through friction
    5·1 answer
  • 1. What makes a plant vacuole different from an animal vacuole? |
    14·1 answer
  • Which of the following situations best shows deposition?
    9·1 answer
  • Which organ gives our body the sense to touch, protects it, and helps keep it at the right temperature?
    8·2 answers
  • If u have 10 moles of C2H2 how many mole of O2 would you need
    6·1 answer
  • What was one main point of Dalton’s atomic theory
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!