Q: Which of the following is a correct conversion factor for mass?

$1 \text{ kg} = 1000 \text{ g}$

Q: Which of the following is the correct relationship between milliliters and liters?

$1 \text{ L} = 1000 \text{ mL}$

Q: Which of the following is the correct formula for the slope of a line on a graph?

$\text{slope} = \frac{\text{rise}}{\text{run}}$

Question 1

Which of the following best describes a chemical property?

Accepted Answer

The ability of a substance to react with oxygen to form rust.

Question 2

Which statement about the scientific method is correct?

Accepted Answer

A hypothesis is a possible explanation that can be tested by experiments.

Question 3

A student measures the length of a pencil as 12.50 cm. How many significant figures are in this measurement?

Accepted Answer

4

Question 4

Which of the following is the correct scientific notation for 0.00056?

Accepted Answer

$5.6 	imes 10^{-4}$

Question 5

A beaker contains 250 mL of water. What is this volume in liters?

Accepted Answer

$0.250$ L

Question 6

Which of the following is a correct conversion factor for mass?

Accepted Answer

$1 	ext{ kg} = 1000 	ext{ g}$

Question 7

A temperature is recorded as $25^\circ$C. What is this temperature in Kelvin?

Accepted Answer

$298$ K

Question 8

Which of the following best describes a direct relationship as shown on a graph?

Accepted Answer

As one variable increases, the other variable also increases.

Question 9

If a measurement is reported as $0.00450$ g, how many significant figures does it have?

Accepted Answer

3

Question 10

Which of the following is the correct way to express $44,000$ with three significant figures in scientific notation?

Accepted Answer

$4.40 	imes 10^{4}$

Question 11

A nurse needs to convert a patient's weight from pounds to kilograms. If the patient weighs $154$ lb, what is the weight in kilograms? (Use $1 	ext{ kg} = 2.2 	ext{ lb}$)

Accepted Answer

$70$ kg

Question 12

Which of the following is NOT a step in the scientific method?

Accepted Answer

Ignoring experimental results that do not support the hypothesis.

Question 13

A student records the following data: $2.50$ m, $2.5$ m, $2.500$ m. Which measurement has the greatest number of significant figures?

Accepted Answer

$2.500$ m

Question 14

Which of the following is the correct relationship between milliliters and liters?

Accepted Answer

$1 	ext{ L} = 1000 	ext{ mL}$

Question 15

A graph shows a straight line with a positive slope. What does this indicate about the relationship between the two variables?

Accepted Answer

There is a direct relationship between the variables.

Question 16

Which of the following is the correct formula for the slope of a line on a graph?

Accepted Answer

$	ext{slope} = \frac{	ext{rise}}{	ext{run}}$

Question 17

A solution contains $5\%$ salt by mass. How many grams of salt are present in $200$ g of solution?

Accepted Answer

$10$ g

Question 18

Which of the following is the correct definition of 'composition' in chemistry?

Accepted Answer

What a substance is made of.

Question 19

Which temperature is closest to the freezing point of water in Kelvin?

Accepted Answer

$273$ K

Question 20

A student needs to solve for $x$ in the equation $2x + 8 = 14$. What is the value of $x$?

Accepted Answer

$3$

Chapter 1: Chemistry in Our Lives – GOB Chemistry Study Notes

Study Guide - Practice Questions

Study Guide - Flashcards