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
likoan [24]
3 years ago
7

NEED ANSWERS ASAP

Chemistry
1 answer:
Alex777 [14]3 years ago
5 0
The chemical energy is converted to mechanical energy to make the body move
You might be interested in
For the following reaction,
jeka94

Answer:

The answer to your question is:

1.- CO

2.- 0.414 moles of CO2

Explanation:

Data

                               2CO   + O2      ⇒    2CO2

CO = 0.414 moles

O2 = 0.418

 

Process

theoretical ratio   CO/O2 = 2/1 = 1

experimental ratio  CO/O2 = 0.414/0.418 = 0.99

Then the limiting reactant is CO

2.-

                    2 moles of CO ---------------  2 moles of CO2

                    0.414 moles of CO ---------  x

                   x = (0.414 x 2) / 2

                   x = 0.414 moles of CO2

                   

5 0
3 years ago
16. Explain why antifreeze is used in vehicle radiators. Use your knowledge of the properties of
Fynjy0 [20]

Answer:

Antifreeze is whats used to keep your engine cool without freezing.

Explanation:

it keeps the engine from overheating.

It also prevents corrosion.

Here is a quote from google "Antifreeze works because the freezing and boiling points of liquids are “colligative” properties. This means they depend on the concentrations of “solutes,” or dissolved substances, in the solution. A pure solution freezes because the lower temperatures cause the molecules to slow down"

That quote is from "The Science Behind Antifreeze"

If you have any questions feel free to ask in the comments.

4 0
4 years ago
Zachary adds 26.64 g to 12.557 g. How many significant figures should his answer have?
asambeis [7]

This answer should have four signifigant features

Explanation:

I had this on a test and got it right  :D

5 0
4 years ago
Read 2 more answers
Given that the density of iron is 7.9 g/cm3, what would be the volume of a 15.8 g piece of iron
Anuta_ua [19.1K]

Answer:

2cm^3

Explanation:

Use the density triangle: D=MxV

Switch for variables, V=M/D

Plug in numbers, 15.8g/7.9g/cm^3=2cm^3

7 0
4 years ago
Why were scientists unsure about the last common ancestor between apes and humans?
nadezda [96]

Answer:

Scientists were unsure about the last common ancestor between apes and humans because fossils are so scarce, researchers do not know what the last common ancestors of living apes and humans looked like or where they originated.

Explanation:

7 0
3 years ago
Other questions:
  • What are the four states of matter and explain them
    14·1 answer
  • When 45.8 g of K2CO3 react with excess HCI, 46.3 g of KCl are formed. Calculate the theoretical and % yields of
    15·1 answer
  • Consider the reaction h2(g) + cl2(g) ⇀↽ 2 hcl(g), which is exothermic as written. what would be the effect on the equilibrium po
    15·2 answers
  • To what category of elements does an element belong if it is a poor conductor of electricity
    10·1 answer
  • A volcano ejects a glowing chunk of lava straight up.
    12·1 answer
  • Water that is on land. Some sources are rain or melting snow.
    9·1 answer
  • List 10 uses of composite​
    8·1 answer
  • Please help me! I got quarantined right when they started a new unit and im confused
    15·1 answer
  • Methane Gas (CH4) is an example of a(n) __________. *
    12·1 answer
  • What is the best way to learn radicals ?​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!