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
Dima020 [189]
3 years ago
9

Is a strap of leather a pure substance

Chemistry
2 answers:
Olin [163]3 years ago
8 0
No. it's not a pure
 substance

Andrew [12]3 years ago
4 0
I'd say no because the only pure substances are elements
You might be interested in
if your total amout of liquid in milliliters is 10 and you total amout of water in milliliters is 7.what is the consentration of
Dominik [7]

3 concentration of the water

7 0
3 years ago
8. Which of the following is a method of purifying water?
Len [333]
A. Adding iodine
hope this helps
4 0
3 years ago
Read 2 more answers
Convert 0.859 mg to cg.<br> Help me plz :(
andrey2020 [161]

Answer:

0.0859

Explanation:

7 0
3 years ago
A 254.5 g sample of a white solid is known to be a mixture of KNO3, BaCl2, and NaCl. When 116.5 g of this mixture is dissolved i
Margaret [11]

Answer:

Mass of KNO3 in the original mix is 146.954 g

Explanation:

mass of KNO_3 in original  254.5 mixture.

moles of BaSO_4 = \frac{mass}{Molecular\ Weight}

moles ofBaSO_4  = \frac{68.3}{233.38}

                               = 0.2926 mol of BaSO4

Therefore,

0.2926 mol of BaCl2,

mass of BaCl_2 = mol\times molecular weight

                         = 0.2926\times 208.23

                         = 60.92 g

the AgCl moles = \frac{mass}{Molecular\ Weight}

                          = \frac{199.1}{143.32}

                          = 1.3891 mol of AgCl

note that, the Cl- derive from both, BACl_2 and NaCl

so

mole of Cl- f NaCl = (1.3891) - (0.2926\times 2) = 0.8039 mol of Cl-

mol of NaCl = 0.8039 moles

mass = mol\times Molecular\ Weight  = 0.8039 \times 58 = 46.626\ g \ of \ NaCl

then

KNO3 mass = 254.5 - 60.92-46.626 = 146.954 g of KNO_3

Mass of KNO3 in the original mix is 146.954 g

8 0
3 years ago
Where the values come from?
Scrat [10]

Answer:

To find the average atomic mass, you take a certain number of atoms, find the total mass of each isotope, and then divide the total mass of all the atoms by the total number of atoms. Assume that you have, say, 10 000 atoms of carbon

Explanation:

5 0
3 years ago
Other questions:
  • How many moles of water molecules are in 6.81 g of magnesium sulfate heptahydrate (Epsom salts
    13·2 answers
  • During what stage of the cell cycle does replication occur
    7·1 answer
  • Why can polar water molecules pass through a cell membrane?
    12·1 answer
  • Which statement correctly describes a scientific theory? A. It is accepted as true indefinitely. B. It is based on repeated inve
    12·1 answer
  • What is the chemical formula of palladium (iv)sulfate​
    9·1 answer
  • Which particle has the same mass as a neutron?
    11·2 answers
  • Please help... I’m trying to study for a test and I can’t find any information on these questions.
    5·1 answer
  • How many times does the Moon rotate on its axis during a lunar month?
    12·1 answer
  • How many grams of ferric oxide will you need to make 1.5 M solution?
    11·1 answer
  • A breeder reactor is one type of nuclear reactor. In a breeder reactor, uranium-238 is transformed in a series of nuclear reacti
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!