Living by Chemistry Chapter 1 Review

What is the name of the piece of lab equipment in the illustration?

• watch glass

• graduated cylinder

• beaker

• flask

Which statement about the science of chemistry is correct?

• Chemistry is the study of living organisms and how they are classified.

• Chemistry is the study of matter and how matter can be changed.

• Chemistry is the study of different scientific hypotheses about movement.

• Chemistry is the explanation of the physical properties of a substance.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

How would a scientist determine if a gold colored penny is made of gold metal or if it is a fake?

• A scientist would guess based on previous knowledge of gold and similar metals.

• A scientist would never be able to determine if a gold colored penny is made of gold metal.

• A scientist would need to study the penny to see if has the physical and chemical properties of gold metal.

• A scientist can tell if a penny is made of gold metal by looking at the penny.

Tags

NGSS.MS-PS1-1

Which is an example of matter?

• a cloud

• an opinion

• sound

• a concept

You have four metal cylinders, each with the same diameter (d). Which rod has the largest volume?

V_cylinder=πr²h = π×(d/2)²×h

• A 5 cm high (h) gold rod that weighs 55.4 g

• A 2 cm high (h) gold rod that weighs 11.1 g

• A 10 cm high (h)silver rod that weighs 35.6 g

• A 5 cm high (h)silver rod that weighs 17.6 g

Which statement is true about measuring the volume of an object by displacement with water?

• Two objects that are the same volume will displace the same amount of water even if they have different masses.

• Heavier objects displace more water than lighter objects when submerged in water.

• Two objects with different volumes but the same mass will displace the same amount of water.

• An object does not have to be fully submerged in the water in order to measure its volume by displacement of water.

What is the correct reading for the volume of water in the graduated cylinder below?

• 16.0 mL

• 17.0 mL

• 18.0 mL

• 19.0 mL

What is the density of a liquid if the volume is 20 mL and the mass is 25 g?

• 0.8 g/mL

• 45 g/mL

• 1.25 g/mL

• 500 g/mL

Which statement is not an appropriate lab safety rule?

• Wear protective glasses or safety goggles for all laboratory work.

• Make sure to put used chemicals back in their original bottles.

• Check chemical labels twice to make sure you have the correct substance.

• Report any laboratory accident, no matter how small, to your teacher immediately.

Which of these pieces of lab equipment would you use to measure the volume of a liquid most accurately?

• test tube

• beaker

• hot plate

• graduated cylinder