Learning Task 1:
Choose the letter of the best answer.
1. The following are examples of physic...
Learning Task 1:
Choose the letter of the best answer.
1. The following are examples of physical change except
a. Melting of ice
C. rusting of iron
b. Freezing of water
d. dissolving salt in water
2. Which of the following correctly describes how heat behaves
a. It moves from a warmer region to a colder region
b. It does not get absorbed or released by particles of substances
c. It is gained by particles of a substance only
d. It move from a colder region
3. A physical change will:
a. Create a new substance.
b. Will have an energy transference
c. Will use oxidation
d. Will change the properties of the substance
4. When a solid reaches the temperature of its it can become a liquid.
a. Melting point
c. freezing point
b. Boiling point
d. density
Answers: 3
Other questions on the subject: Chemistry
Chemistry, 21.06.2019 22:30, Aidanjsauer
Check the correct box to describe the periodic trends in electronegativity. electronegativity across a period: decreases. increases. electronegativity down a group: decreases. increases.
Answers: 2
Chemistry, 23.06.2019 08:00, sassy11111515
Match the vocabulary terms to their definitions. 1 . a long, chain-like set of molecules made up of repeating units joined end to end polymer 2 . a hard, brittle, heat- and corrosion-resistant material made by subjecting a nonmetallic mineral mixture to intense heat ceramic 3 . a plastic with low elongations that cannot be recycled thermoset 4 . a carbon fiber embedded in a polymer resin matrix thermoplastic 5 . a plastic with high elongations that can be recycled crystal 6 . a solid form resulting from the arrangement of atoms, ions, or molecules in definite geometric patterns composite
Answers: 1
You know the right answer?
Questions in other subjects:
Biology, 27.04.2021 02:10
Social Studies, 27.04.2021 02:10
Mathematics, 27.04.2021 02:10
Biology, 27.04.2021 02:10
History, 27.04.2021 02:10
