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
ehidna [41]
3 years ago
9

A catalyst can speed up the rate of a given chemical reaction by

Chemistry
1 answer:
hjlf3 years ago
4 0

Decreasing the activation energy needed for the reaction.

You might be interested in
Which of the following describes experiences initiated spontaneously by children as they go about their daily activities?
Harlamova29_29 [7]

Answer:

naturalistic

Explanation:

4 0
3 years ago
Why is a thermos considered a (mostly) closed system? Question 3 options: different types of liquids stay hot thermoses come in
cestrela7 [59]

Answer:

Different types of hot or cold items can be stored in a thermos and power cannot enter or exit the system when the thermos lid is tightly closed

Explanation:

Closed systems are those that do not interact or do not exchange energy with the environment that surrounds them, that is why internal temperatures and conditions are maintained.

The human body is an open system, that is, it would be the opposite of the thermos since we constantly exchange energy with the environment through sweating, emission of gases, urine, feces, and the ingestion of food.

Thermoses are systems specially created to maintain a medium, it will be maintained if its lid is hermetically closed to prevent heat leakage or entry in situations of cold fluids.

4 0
3 years ago
The equations ? It’s for a chemistry class, and he said we need to explain and write down the math problems?
alina1380 [7]

Answer:

I think this is because math and chemistry go together and the math problems are science related.

Explanation:

3 0
2 years ago
A substance with a mass of 50.0 g has a temperature change of 40.0
grigory [225]

Answer:

Mass=50.0g

H=670J

change in temperature=40

using. c=h÷m×change in temperature

c=670÷50×40

C=670÷2000

C=0.335jkg-1k-1

7 0
2 years ago
Read 2 more answers
The number of moles of solute in 200.ml of a 0.500 m solution is
IrinaK [193]

Answer:

I believe the answer is 0.100.

Explanation:

Hope my answer has helped you!

8 0
3 years ago
Other questions:
  • If you could explain why as well for just #6 pleaseee I need help
    10·1 answer
  • What is the major driving force for losing a proton as the last step in an electrophilic aromatic substitution reaction?
    12·1 answer
  • Eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee question in picture
    15·1 answer
  • What does carbon dioxide do when released into the air
    5·2 answers
  • DUE IN 30 MINUTES!!! (please keep it short if you can, if not its ok.) What is the molar mass of Pb(SO4)2? Explain how you calcu
    5·2 answers
  • Need this asap , help please
    5·1 answer
  • A student pipets 5.00 mL of a 5.103 M aqueous NaOH solution into a 250.00 mL volumetric flask and dilutes up to the mark with di
    8·1 answer
  • Ammonia (NH3) clouds are present around some planets. Calculate the number of grams of ammonia produced by the reaction of 5.4 g
    10·2 answers
  • Does protecting animals so they won’t go extinct help with climate change?
    6·2 answers
  • How is carbon within the hydrosphere?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!