Safety in Science

Question 1

Roberto wants to measure the lengths of the sides of a metal cube. Which tool should he use?

Revolt · Accepted Answer

ruler

Question 2

To make a solution, Sian must measure 15.0 mL water. Which tool should she use?

Revolt · Accepted Answer

graduated cylinder

Question 3

9,236 cm = m

Revolt · Accepted Answer

92.36

Question 4

4. 0.0045 cm or 0.0045 in. Larger quantity:

Revolt · Accepted Answer

0.0045 in.

Question 5

An experimental procedure calls for 35.9 g sodium chloride and 15.2 g silver nitrate. What tool should be used to measure these substances?

Revolt · Accepted Answer

electronic balance

Question 6

Mark needs to determine how much the temperature of a solution changes during a chemical reaction. Which tool does he need?

Revolt · Accepted Answer

thermometer

Question 7

For a certain experiment, Juan must measure the concentration of a certain substance in a solution over time. He needs to collect a measurement every 0.05 seconds. He then needs to display his data in a graph and place that graph in a text document. Select the best tools to use for this experiment. Check all that apply.

Revolt · Accepted Answer

probeware; computer

Question 8

Alice needs to calculate the average pressure inside a gas cylinder. She has access to both a data table showing the pressure over time and a graph of pressure over time. Which representation is probably most useful to her if she wants a precise answer?

Revolt · Accepted Answer

data table

Question 9

A chemical reaction produces solid sulfur as a product. Which unit should be used to describe the mass of the sulfur produced?

Revolt · Accepted Answer

grams

Question 10

The volume of a gas must be measured at several points during an experiment. Which units should be used to describe the volume of the gas?

Revolt · Accepted Answer

liters

Safety in Science Answers

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