CHEMISTRY MIDDLE SCHOOL

Which physical properties would be the same as a substance’s melting point?A. boiling point
B. specific heat
C. freezing point
D. solubility

Answers

Answer 1
Answer: C. The freezing point would be the same as the melting point, because both are phase changes between solid and liquid.
Answer 2
Answer: melting point: a temperature where a substance would turn from solid to liquid
freezing point: a temperature where a substance would turn from liquid to solid

therefore, these two are equivalent.

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Which of these period three elements from the periodic table would you predict to be the MOST metallic? A)Al
B)Ar
C)Cl
D)Si

Answers

Al, since it is the only metal in that list

A is obiviously the answer here.

scientists want to place a telescope on the moon to prove their view of distant planets. The telescope weighs 200 pounds on Earth what will happen to the weigh of the telescope when it reaches thw moon?

Answers

The weight itself technically will not change. The pull of gravity lessens, making it appear that it is lighter on the moon.

An ionic compound is formed whenA a metal bonds with another metal
B a nonmetal bonds with another nonmetal
C a metal bonds with a nonmetal
D three nonmetals bond together

Answers

metal bonds with nonmetal
well, ionic compounds are formed when positive and negative ions are formed so i would say A.

Wegner's theory that the continents slowly moved over Earth's surface became known as _________ .

Answers

Wegener's idea that the continents slowly moved over Earth's surface became known as CONTINENTAL DRIFT.

  • Alfred Wegener was a German geophysicist who proposed the continental drift hypothesis.

  • According to this hypothesis, the continents were once a single landmass called Pangaea, which incorporated almost all the landmasses on Earth.

  • Wegener proposed that Pangea separated (approx. 200 million years ago) in order to create continents.

  • Finally, the continents slowly moved to their current positions by a process he called continental drift.

In conclusion, Wegener's idea that the continents slowly moved over Earth's surface became known as CONTINENTAL DRIFT.

Learn more in:

brainly.com/question/1867605
wedners idea that the continents slowly moved over Earth's surface became known as continental drift. According to Wegener, the continents drifted together to form the supercontinent Pangaea (pan jee uh).Pangaea means “all lands.” According toWegener, Pangaea existed about 300 million years ago.

In liters, occupied by 2.18 miles of N2 gas

Answers

Answer:

The volume occupied by 2.18 moles of N_(2) is 48.832L

Explanation:

The volume occupied by 1 mole of N_(2) is 22.4 L

The volume occupied by 1 mole of any gas is 22.4 L

The number of moles of N_(2) = 2.18 moles

The volume occupied by 2.18 moles of N_(2):

Volume=2.18*22.4=48.832L

Hence, the volume occupied by 2.18 moles of N_(2) is 48.832L

The mass of an object is described in what??

Answers

The mass of an object is measured in either grams or kilograms. Mass is best described as the amount of matter, or "stuff," in a solid, and is different from weight (which is the force of gravity on an object). Since mass is used with solids, it will be measured in grams or kilograms (rather than in something like liters, which would be used with the volume of a liquid). To measure mass, you can use a balance, for example a triple balance beam.
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