Chemistry Semester 1 Exam Review

Chemistry Semester 1 Exam Review

Assessment

Flashcard

Chemistry

10th - 12th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the formula for calculating density?

Back

Density = Mass / Volume

2.

FLASHCARD QUESTION

Front

What is the density of an object having a mass of 8.0 g and a volume of 25 cm³?

Back

0.32 g/cm³

3.

FLASHCARD QUESTION

Front

What is the main conclusion of Rutherford's gold foil experiment?

Back

The nucleus is small, dense, and positively charged.

4.

FLASHCARD QUESTION

Front

What is the atomic model proposed by Niels Bohr?

Back

Electrons travel in specific paths or orbits around the nucleus.

5.

FLASHCARD QUESTION

Front

What is the significance of Thomson's cathode-ray tube experiment?

Back

It led to the discovery of the electron.

6.

FLASHCARD QUESTION

Front

What is Avogadro's number?

Back

6.02 x 10²³, the number of atoms or molecules in one mole.

7.

FLASHCARD QUESTION

Front

What is the charge of a proton?

Back

+1

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