Chemistry, 17.10.2021 18:30, donttrip10

A heterogeneous material may be 1) an element
2) a compound
3) a pure substance
4) a mixture

Answers: 3

Show answers

Other questions on the subject: Chemistry

Chemistry, 21.06.2019 17:00, kathleendthomas

Look at the reaction below: ca(hco3)2 --> caco3 + co2 + h2o first, balance the reaction. once balanced, use dimensional analysis or another method to find out how many moles of carbon dioxide will be produced if we start with 16.5 moles of calcium bicarbonate (calcium hydrogen carbonate). = mol of co2 number needs to be reported to three significant figures.

Answers: 1

continue

Chemistry, 23.06.2019 06:30, SimplyGenesis762

Generally, observed behavior that can be formulated into a statement, sometimes mathematical in nature, is called a(n): a. observation. b. measurement. c. theory. d. natural law. e. experiment.

Answers: 2

continue

Chemistry, 23.06.2019 07:10, pk4mk

1) a light bulb takes in 30 of energy per second. it transfers 3j as use energy. calculate the efficiency. second. it transfers 3j as useful light energy and 27j as heat energy. calculate the efficiency

Answers: 1

continue

Chemistry, 23.06.2019 13:30, harris435942

Type the correct answer in each box. use numerals instead of words. the distance between earth and the moon is about 384,400 kilometers. the distance can be written in scientific notation as a × 10b kilometers, where a = and b = .

Answers: 1

continue

Do you know the correct answer?

A heterogeneous material may be 1) an element
2) a compound
3) a pure substance
...