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
Jlenok [28]
2 years ago
10

What energy transfer is occurring when you make a call on a phone?

Chemistry
2 answers:
irga5000 [103]2 years ago
7 0
When you make a call, the electricity turns into sound.

Hope this helped! c: 
dimulka [17.4K]2 years ago
7 0

Answer: option B

Explanation: a.combustion is an example for chemical energy into light. Example burning of wood

B. Exothermic chemical reactions releases energy in the form of heat..

Example burning of coal

C. Electric kettle, motor's sound and motorcycle sound are examples for heat to sound

D. Mobile speakers are examples for electrical to sound

You might be interested in
Metals react with oxygen to give oxides with the general formula MxOy. What is a balanced chemical equation for the reaction of
katovenus [111]

Answer: 4Fe+3O_2\rightarrow 2Fe_2O_3

Explanation:

For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.  

Here iron is having an oxidation state of +3 called as Fe^{3+} cation and oxide O^{2-} is an anion with oxidation state of -2. Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral Fe_2O_3.

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

2Fe+3O_2\rightarrow 2Fe_2O_3

8 0
3 years ago
Read 2 more answers
If 125.0g of nitrogen is reacted with 125.0g of hydrogen, what is the theoretical yield of the reaction? What is the excess reac
MakcuM [25]

Answer:

Hydrogen is the excess reactant

Nitrogen is the limiting reactant

151.6g is theoretical yield

Explanation:

The reaction of N₂ with H₂ to produce NH₃ is:

N₂ + 3H₂ → 2NH₃

To find theoretical yield we need to determine limiting reactant with the moles of each gas as follows:

Nitrogen -Molar mass: 28g/mol-

125.0g * (1mol / 28g) = 4.46 moles

Hydrogen -Molar mass: 2g/mol-

125.0g * (1mol / 2g) = 62.5 moles of hydrogen

For a complete reaction of 4.46 moles of N2 there are needed:

4.46 moles N2 * (3moles H2 / 1mol N2) = 13.38 moles of hydrogen

As there are 62.5 moles of hydrogen:

<h3>Hydrogen is the excess reactant</h3><h3>Nitrogen is the limiting reactant</h3><h3 />

With nitrogen, the limiting reactant, we determine theoretical moles (Assuming 100% of the reaction occurs) and theoretical yield (In mass):

4.46 moles N2 * (2moles NH3 / 1mol N2) = 8.92 moles of ammonia

As molar mass of ammonia is 17g/mol:

8.92 moles of ammonia * (17g/mol) =

<h3>151.6g is theoretical yield</h3>

5 0
3 years ago
True or Fase. Every substance has to be classified as either acid or base?
Sever21 [200]

Answer:

False

Explanation:

Some substances don't have to be

8 0
2 years ago
PLEASE HELP!!!!!!!!!!! WILL AWARD 50 POINTS!!!!!!!!!111
Vinil7 [7]

I am pretty sure the answer is . But I might be wrong.

3 0
2 years ago
Read 2 more answers
How many moles of glucose are produced? <br><br><br><br> How many moles of oxygen are produced?
frozen [14]

Explanation:

5.00 mol H2O × (1 mol C6H12O6/6 mol H2O)

= 0.833 mol C6H12O6

5.00 mol H2O × (6 mol O2/6 mol H2O)

= 5.00 mol O2

6 0
3 years ago
Other questions:
  • Distinguish air mass and a front
    14·1 answer
  • the amount of pollution produced by cars was measured for cars using gasoline containing different amounts of lead. what is the
    5·1 answer
  • Which is the electron configuration for zinc?
    6·1 answer
  • Menthol is a crystalline substance with a peppermint taste and odor. When 1.48 g of menthol is dissolved in 25.0 g of cyclohexan
    12·1 answer
  • Which is a cationic detergent having four organic groups attached to a nitrogen atom and used to sanitize utensils? Select one:
    9·1 answer
  • An aqueous solution containing 17.5 g of an unknown molecular (nonelectrolyte) compound in 100.0 g of water has a freezing point
    6·1 answer
  • 60<br> х<br> 8<br> у<br> x=<br> 04<br> 09<br> O 16
    10·1 answer
  • PLEASE HELP ASAP
    11·1 answer
  • If anybody wanna be friends drop your snap below
    13·1 answer
  • HELP PLZ ITS DUE SOON!!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!