$$8.60 \times 10$$^{-5}$$ \ \mathrm{cm}$$

Question 1

Which of the following is the correct scientific notation for the number 0.0000850 cm?

Accepted Answer

$$8.60 	imes 10$$^{-5}$$ \ \mathrm{cm}$$

Question 2

A student measures the mass of a sample as 0.0058350 kg. How many significant figures does this measurement have?

Accepted Answer

6

Question 3

Which of the following is an example of a chemical property?

Accepted Answer

reactivity with oxygen

Question 4

If 1 mile equals 1.61 km, how many kilometers are in 3570 yards? (1 mile = 1760 yards)

Accepted Answer

1.42 km

Question 5

What is the density of a material if its mass is 67.55 g and its volume is 8.30 cm$$^3$$?

Accepted Answer

$$8.14 \ \mathrm{g/cm^3$}$$

Question 6

Which of the following statements about the nucleus of an atom is NOT correct?

Accepted Answer

It contains nearly all of the atom’s volume.

Question 7

Which metric unit would you use to measure the length of a classroom?

Accepted Answer

m

Question 8

How should the result of $$6.5 \ \mathrm{m}$$ divided by $$3 \ \mathrm{s} be $$correctly recorded with the proper number of significant figures?

Accepted Answer

$$2.0 \ \mathrm{m/s}$$

Question 9

What type of matter is formed when two or more elements are chemically combined?

Accepted Answer

pure substance

Question 10

The horizontal rows on the periodic table are called:

Accepted Answer

periods

Question 11

The number of atoms in a mole of any pure substance is called:

Accepted Answer

Avogadro's number

Question 12

Valence electrons are s- and p- electrons:

Accepted Answer

in the highest energy level

Question 13

The number of orbitals for the d-sublevel is:

Accepted Answer

5

Question 14

The total number of protons and neutrons in the nucleus of an atom is its:

Accepted Answer

mass number

Question 15

What is the name for a negative ion?

Accepted Answer

anion

Question 16

Round the measurement $$0.034770 \ \mathrm{m} to $$two significant figures.

Accepted Answer

$$0.03 \ \mathrm{m}$$

Question 17

Which of the following is NOT a property of the nucleus of an atom?

Accepted Answer

It contains nearly all of the atom’s volume.

Question 18

Which of the following is the correct conversion for $$5.600 \ \mathrm{L} of $$water to milliliters?

Accepted Answer

5600 mL

Question 19

Which of the following is the correct way to write $$0.095 \ \mathrm{cm} in $$millimeters?

Accepted Answer

0.95 mm

Question 20

Which of the following best describes a solution?

Accepted Answer

A homogeneous mixture

General Chemistry: Fundamental Concepts and Calculations Study Guide

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