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
marysya [2.9K]
2 years ago
11

A compact disc has a diameter of 11.8 cm. What is the surface area of the disk in square centimeters? In square meters?

Chemistry
1 answer:
Leona [35]2 years ago
5 0
A disc is a circle so the formula for the area is pie r^2. So plugging in the numbers bring in the answer of 18.53
You might be interested in
What are 2 metric system units for measuring liquid volume?
Step2247 [10]

Answer:

milliliters and liters.

3 0
3 years ago
What are examples of molecular compounds that we use in everyday life?
IrinaVladis [17]

Answer:

Carbon dioxide and hydrogen monoxide

6 0
2 years ago
The common pathway for the oxidation of glucose and fatty acids is ________.
finlep [7]
The citric acid cycle should be the answer.
3 0
3 years ago
Match the solutions to the descriptions of the freezing points.a. One mole of the ionic compound Na3PO4 dissolved in 1000 g H2O
rosijanka [135]

Explanation:

Depression in Freezing point

= Kf × i × m

where m is molality , i is Van't Hoff factor, m = molality

Since molality and Kf remain the same

depression in freezing point is proportional to i

i= 2 for CuSO4 ( CuSO4----------> Cu+2 + SO4-2

i=1 for C2h6O

i= 3 for MgCl2 ( MgCl2--------> Mg+2+ 2Cl-)

So the freezing point depression is highest for MgCl2 and lowest for C2H6O

so freezing point of the solution = freezing point of pure solvent- freezing point depression

since MgCl2 has got highest freezing point depression it will have loweest freezing point and C2H6O will have highest freezing point

5 0
2 years ago
Why is water important?​
expeople1 [14]

Answer:

Its a natural resource used around the world

4 0
2 years ago
Other questions:
  • Is exploding dynamite a chemical or physical property?
    7·1 answer
  • Do hot things, like water or magma, always rise?
    12·1 answer
  • If your density was supposed to be 2.3 g/mL, but you calculated yours to be 2.1 g/mL, what is your percent error?
    8·1 answer
  • Human bone does not contain?
    5·1 answer
  • What are some of thr similarties of physical changes and chemical changes?
    8·1 answer
  • A small windmill is to be built at a science competition. A large floor fan is used to power each windmill The task
    9·1 answer
  • 1. A sample of oxygen gas has a volume of 150 ml when its pressure is 440 mmHg. If the pressure is
    6·1 answer
  • Molar mass for caffeine
    11·1 answer
  • Harim placed 5mL of ethanol into a container that weighs 1 gram using a dropper. He already knew the density of ethanol is 0.78
    13·1 answer
  • 1. Swimming pool manufacturers recommend maintaining the
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!