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
DENIUS [597]
3 years ago
10

Select the type of energy involved in each step.

Chemistry
2 answers:
Natalka [10]3 years ago
8 0

Explanation:

1) When we turn on the burner of the gas stove, we use mechanical energy. Mechanical energy is energy due to motion of an object.

Correct is option (c).

2)The ignition of the gas is a chemical energy. Chemical energy is is a energy which releases during the chemical reaction. Here gas id reaction with air to get ignite.

Correct is option (a).

3) The warming of the water in the pan by the help of burning gas is thermal energy. The thermal energy is an energy due to motion of the molecules or particles which can be transferred from one object to another in form of heat. Here the heat transferred to the pan by the burning of gas warms the water.

Correct is option (b).

Helen [10]3 years ago
6 0
1. Is mechanical
2 is chemical
3 is thermal
You might be interested in
Using the table of average bond energies below, the delta h for the reaction is
Sindrei [870]
Using the table of average bond energies the delta h is the <span>the delta h lol</span>
3 0
4 years ago
A chemist must prepare 275. mL of 1967, ?? aqueous copper(II) fluoride (Cur) working solution. He'll do this by pouring out some
blagie [28]

Answer:

206 mL

Explanation:

In the annexed picture you can see your same question, just in another format.

First we <u>calculate the total moles of CuF₂ that are required in the working solution</u>:

1967 μM ⇒ 1967 / 10⁶ = 1.967 x10⁻³M

1.967 x10⁻³M * 0.275 L = 5.409x10⁻⁴ mol

Now we divide those moles by the concentration of the stock solution, to <u>calculate the volume</u>:

5.409x10⁻⁴ mol ⇒ 5.409x10⁻⁴ * 1000 = 0.5409 mmol

0.5409 mmol ÷ (2.63 mmol/L) = 0.206 L

0.206 L ⇒ 0.206 * 1000 = 206 mL

3 0
3 years ago
How many protons neutrons and electrons does beryllium have
choli [55]
Beryllium has 4 protons, 4 electrons and 5 neutrons
5 0
3 years ago
Read 2 more answers
Define the standard heat of formation of mgco3
Karo-lina-s [1.5K]
The standard heat of formation is the energy change that occurs when 1 mole of a substance is made from its elements in their standard states ( most stable form of the element at 1 bar of pressure and the specified temperature, usually 298 K or 25 degrees Celcius) 
E.g for MgCO3
Mg (s) + C (s) + 3/2 O2 (g) = MgCO3
7 0
3 years ago
9. What tool do you use to measure the mass of an object?
Phoenix [80]

Answer:

triple beam balance

Explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Please help me with these two questions
    11·1 answer
  • PLSSSSS HELPPPP......
    9·1 answer
  • When did Darwin publicly share his views of evolution?
    6·1 answer
  • Phosphorus trichloride, PCl3, decomposes to form elemental phosphorus and chlorine. The equation is: 4PCl3 → P4 + 6Cl2. Balance
    5·2 answers
  • What is the energy transformation of a gas powered car
    15·1 answer
  • What volume of 0.496 M HCl is required to neutralize 20.0 mL of 0.809 M sodium hydroxide?
    13·1 answer
  • An ecosystem describes a specific area where the organisms _____ _____ as a unit
    6·1 answer
  • 4. The Universal Space Agency wants to know the results of your investigation. Write your report to the lead chemist, explaining
    15·1 answer
  • Which is true of scientific questions?
    10·1 answer
  • What tissues carry nutrients to the ground tissues of a plant?​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!