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
ZanzabumX [31]
3 years ago
9

What is the mass of a 12.31 cm3 piece of copper having a density of 8.96 g/cm3?

Chemistry
1 answer:
malfutka [58]3 years ago
7 0

Answer:

mass is 110.3g

Explanation:

Density = mass/volume

density = 8.96 g/cm³

volume = 12.31cm³

mass = ?

density x volume = mass

8.96 x 12.31 = 110.2976g≈110.3g

You might be interested in
The Al-Aqsa Mosque and Dome of the Rock are located in
kvasek [131]

The correct answer is - Jerusalem

7 0
3 years ago
A substance with a pH value of 8.0 and [H3O+] of 1.00 x 10-8 would be a basic substance.
garik1379 [7]
False

if the pH is 8, this is basic because based on the pH scale, any below 7 is acidic, above 7 is basic and at 7 is neutral.
6 0
3 years ago
Read 2 more answers
Classify methanol (ch3oh) as a strong electrolyte, a weak electrolyte, or a nonelectrolyte.
MrRa [10]
Methanol(CH3OH) is a nonelectrolyte as it is not readily ionized when melted and dissolved, and a poor conductor of electricity when it is in solution.
Nanelectrolyte Contains covalent bonds and typically nonpolar molecules. Methanol doesn't dissolve in water, as the H of the alcohol functional group is not acidic enough so we can't easily separate it from the molecule.

8 0
3 years ago
Read 2 more answers
Many computer chips are manufactured from silicon, which occurs in nature as SiO2. When SiO2 is heated to melting, it reacts wit
Feliz [49]

Answer:

Theoretical yield for Si = 2586.55*28.09= 72.7 Kg

Percentage yield is =2356.71/2586.55=91.11%

Explanation:

So the chemical equation for this reaction would be SiO2 + 2C = Si + CO

so n(SiO2)=m(SiO2)/M(SiO2)=155400/60.08=2586.55 mol

n(C)=m(C)/M(C)=77400/12.01=6444.63 mol

So Carbon is in exes.

n(Si)=m(Si)/M(Si)=66200/28.09= 2356.71 mol

Theoretical yield for Si = 2586.55*28.09= 72.7 Kg

Percentage yield is =2356.71/2586.55=91.11%

6 0
3 years ago
( WILL BRAINLIEST!! )
Sonja [21]
You can reduce our carbon footprints by using renewable energy,calculate your carbon footprint and make changes,use car less and minimize driving and walk or cycle more and reduce water use.
Hydrogen fuel can not replace fossil fuels this is because fossil fuel use more energy and make more pollution.
 
3 0
3 years ago
Read 2 more answers
Other questions:
  • Is vinegar a mixture or a pure substance?
    7·1 answer
  • Dr. Brown's science class is studying changes in particle motion during phase changes by adding a few pieces of dry ice to a fla
    7·2 answers
  • What is the function of a vesicle, sometimes called a vacuole, in a animal cell?
    13·1 answer
  • Which of the following substances is most likely to be a liquid at room temperature?
    6·2 answers
  • What is the chemical formula for carbon tetrafluoride?
    5·2 answers
  • What is the atmic number of an elemts that has six protons and eight nuetrons?
    5·1 answer
  • Explain evaporation. have a chapter test tommarow !
    12·2 answers
  • Which statement best describes the model that shows a compound?
    13·2 answers
  • A wooden block has a mass of 125 g and a volume of 55 cm3. What is its density?
    11·1 answer
  • Otra manera para llamar la aceleración negativa es_______
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!