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
Virty [35]
2 years ago
10

Which change absorbs heat?

Chemistry
2 answers:
Sphinxa [80]2 years ago
4 0

Answer:

Using a Laptop computer

viktelen [127]2 years ago
4 0

Answer:

Frying an egg I do believe becuase it has to absorb the heat in order to cook.

Explanation:

You might be interested in
Enthalpy change is the
PtichkaEL [24]

Answer:

I believe is A

Explanation:

Enthalpy change is the name given to the amount of heat evolved or absorbed in a reaction carried out at constant pressure.

3 0
3 years ago
Which rule for assigning oxidation numbers IS correct?
Vilka [71]

Answer:

B.) Oxygen is usually -2

Explanation:

Hydrogen is usually +1.

A pure group 1 element is not always +1.

A monoatomic ion can be a range of numbers. However, it must be a charge other than 0.

3 0
1 year ago
Calcium (Ca) and oxygen (O) combine to form an ionic compound. Which best describes the electron dot formula for this compound
Blizzard [7]
CaO because oxygen have 2 dots and calcium as well
(oxygen valency -2
calcium valncy +2)= CaO
3 0
2 years ago
Given a fixed amount of gas help at a constant pressure, calculate the temperature to which the gas would have to be changed if
PIT_PIT [208]

Answer:

592 K or 319° C

Explanation:

From the statement of Charles law we know that the volume of a given mass of gas is directly proportional to its absolute temperature at constant pressure. Thus;

V1/T1= V2/T2

Initial volume V1 = 1.75 L

Initial temperature T1= 23.0 +273 = 296 K

Final volume V2= 3.50 L

Final temperature T2 = the unknown

T2= V2T1/V1= 3.50 × 296 / 1.75

T2 = 592 K or 319° C

4 0
2 years ago
Would a false positive from the reaction between the inoculating loop and hydrogen peroxide
Svetradugi [14.3K]
The false positive from the response of hydrogen peroxide and the immunizing circle would be created by poor specificity. The recipe for specificity is TN/TN+FP. False-positive outcomes can be ascribed to meddling substances in nature where the strips are put away or utilized, for example, hydrogen peroxide (H2O2) or fade (hypochlorite).
3 0
3 years ago
Other questions:
  • How many grams of Fe can be produced when 5.50 g of Fe2O3 reacts?
    14·1 answer
  • In the following unbalanced chemical reaction, what belongs in the blank? C8H18 + O2à CO2 + H2O + _________ A. CO B. CO3 C. ener
    15·2 answers
  • Question 3(Multiple Choice Worth 1 points)
    14·1 answer
  • A gas inside a piston initially has a pressure of 1.2 bars at temperature of 25 degree C and volume of 20.0 mL. If temperature i
    10·1 answer
  • On August 4, 2020, an explosion estimated at 1.2 kilotons of TNT (dynamite) destroyed
    15·1 answer
  • 14. A researcher Is curious to find out what effect classical music has on people's level of relaxation
    14·1 answer
  • What is the fixer solution equation?
    8·1 answer
  • A 0.0200 M NaCl solution was formed when 38.0 grams of NaCl was dissolved in
    13·1 answer
  • 3.
    10·1 answer
  • How does a Camel prevent the loss of water from their body?​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!