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
nydimaria [60]
2 years ago
6

How do exothermic and endothermic differ

Chemistry
2 answers:
Ber [7]2 years ago
6 0

Answer:

Explanation:

exothermic reactions involve release of heat whereas endothermic reaction involve absorption of heat.

VladimirAG [237]2 years ago
6 0
An exothermic process releases heat, causing the temperature of the immediate surroundings to rise. An endothermic process absorbs heat and cools the surroundings.”
You might be interested in
At 25 ∘C the reaction CaCrO4(s)←→Ca2+(aq)+CrO2−4(aq) has an equilibrium constant Kc=7.1×10−4. What is the equilibrium concentrat
Nitella [24]

Answer:

2.67 × 10⁻²

Explanation:

Equation for the reaction is expressed as:

CaCrO₄(s)    ⇄      Ca₂⁺(aq)         +        CrO₂⁻⁴(aq)

Given that:

Kc=7.1×10⁻⁴

Kc= [Ca^{2+}][CrO^{2-}_4]

Kc= [x][x]

Kc= [x²]

7.1×10⁻⁴ =  [x²]

x = \sqrt{7.1*10^{-4}}

x = 0.0267

x = 2.67*10^{-2}

6 0
3 years ago
How much heat is required to raise the<br> temperature of 835g of water from 35.0°C to<br> 65.0°C?
Anna007 [38]

Answer:

25,050 calories.

Explanation:

A calorie is the amount of energy needed to raise the temperature of one gram of water 1 degree centigrade. If we are raising 835 grams of water 30 degrees then we multiply 835*30 to get 25,050 calories.

3 0
3 years ago
2) Pick the statement about the Bohr model of the hydrogen atom that is NOT true. A) The energy of each Bohr orbit is quantized.
DochEvi [55]
I think the answer would be c
5 0
3 years ago
Read 2 more answers
What kinds of scientific investagations involve making observations
bulgar [2K]

Scientific investigations that involve some kind of testing will make use of observations.  Generally speaking, making observations is the first step of the scientific method.  Based on those observations, a question is asked, and then a hypothesis and prediction will be stated.  A scientist will set up a test, observe the outcome, and collect data on the test.  That will lead the scientist to some kind of conclusion relating to the initial question and hypothesis....

6 0
3 years ago
How many grams of aluminum are necessary to produce 11 L of hydrogen gas at STP?? <br> PLEASE HELP
-BARSIC- [3]
9.0 grams will produce 11 L of hydrogen
6 0
2 years ago
Read 2 more answers
Other questions:
  • An electric field is created by particles that
    5·1 answer
  • The process of cellular respiration, which converts simple sugars such as glucose into CO2 and water, is an example of _____. Se
    10·1 answer
  • Calculate how many molecules are present in the following quantities.
    14·2 answers
  • A single compound breaks apart to form two or more elements or compounds
    7·2 answers
  • Which of the following is a type of matter
    14·2 answers
  • ANSWER ASAP AND I WILL GIVE BRAINLYEST!!!!
    6·2 answers
  • Which state of matter expands most when heated​
    8·2 answers
  • Which element in Period 3 has the largest atomic radius?
    14·1 answer
  • At the atomic level, are synthetic medicines different from natural medicines? Explain your answer.
    6·2 answers
  • PLEASE HELP!!!!!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!