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
Lady_Fox [76]
3 years ago
6

Which two energy sources were used the most in

Chemistry
1 answer:
Naily [24]3 years ago
4 0

Answer:

The 1st and 2nd ones on the top

Explanation:

Hope this helps:)

You might be interested in
The mass number of an element is equal to
klasskru [66]

Answer:

The mass number is defined as the total number of protons and neutrons in an atom.

Explanation:

8 0
4 years ago
Which of these accurately describes the cause of transfer of heat by conduction?
Alja [10]

Answer:

A Hope this helped

Explanation:

The heat source for our planet is the sun. Energy from the sun is transferred through space and through the earth's atmosphere to the earth's surface. Since this energy warms the earth's surface and atmosphere, some of it is or becomes heat energy. There are three ways heat is transferred into and through the atmosphere:

radiation

conduction

convection

Radiation

5 0
3 years ago
Read 2 more answers
Give the major product formed when phenol is heated with concentrated H2SO4 and SO3. (There is more than one correct answer, but
iris [78.8K]

Answer:

See image attached and explanation

Explanation:

The reaction of phenol with SO3/H2SO4 is an electrophilic reaction. The electrophile attacks portions of high electron density in the substrate phenol.

The -OH group activates phenol towards electrophilic substitution at the ortho and para positions, hence the product(s) formed in this reaction(only one product is shown here as required by the question).

The sulphonation of phenol using concentrated sulfuric acid at lower temperature yields majorly the ortho product whereas at higher temperature the para product predominates.

4 0
3 years ago
If 2.40 moles of gas are held at a temperature of 97.0 °C in a container with a volume of 45.0 L, what is the pressure of the ga
Rainbow [258]
PV=nRT<=> P=nRT/V=2,40*R*(273+97)/45 atm.
Calculate it. R is a number that is given, find it and use your math to solve.
7 0
3 years ago
How does plants react with no scratch?
Andreas93 [3]

Answer:

You see, plants need energy to grow and grow and grow. They use energy from sunlight to make a simple sugar, glucose. Whenever the plant needs energy, it can chomp a little glucose off of the starch.

without energy it wont get energy/food so it will eventually die  

Explanation:

3 0
3 years ago
Other questions:
  • At which of the following temperatures is the speed of a given chemical reaction the fastest
    8·2 answers
  • Which step will decrease the pressure of a gas inside a closed cubical container?
    9·2 answers
  • Cindy makes herself a cup of hot chocolate on a very cold day. If Cindy's hands are very cold and the cup is very hot, heat ener
    14·2 answers
  • Which metals can release zinc from its compounds?
    9·2 answers
  • Compare the appearance and pH of the unfiltered and filtered polluted water. What conclusion can be made based on these observat
    12·2 answers
  • Which of the following uses mechanical energy to function?
    6·1 answer
  • What is the molecular formula for a compound that is 44.87% potassium, 36.7%
    14·1 answer
  • 48g of magnesium reacts with four moles of sulfuric acid. determine which reactant is the limiting reactant
    7·1 answer
  • NEED HELP ASAP WILL GIVE BRAINLIEST
    12·1 answer
  • If pure water boils at 99.8 degrees celcius, what is the expected elevated boiling point of a solution of 2.50g of CaCl2, in 50.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!