Test 1 Review

Which if the following is an extensive property

• color

• texture

• density

• mass

Which of the following is an intensive property

• Solubility

• volume

• mass

• length

Write the following number in scientific notation 0.02857

• 28.5 x 10³

• 2.9 x 10^-2

• 29 x 10²

• .28 x 20^-1

During a lab investigation a Magnesium reacts violently when placed in water. Adam says reaction is a chemical change. Which of the following reasons would be a good justification of that.

• Magnesium is a soft metal

• Magnesium is a lquid at room temp.

• Magnesium reacts with placed in water

• Magneisum is a shinny metal

During a lab investigation you are asked to measure out 11.5 mL of a chemical. Which piece of lab equipment should you use to measure it?

• beaker

• dropper pipette

• flask

• graduated cylinder

In the video "how to make nylon" two clear liquids were mixed together to created a white solid substance called nylon. What type of process has occured?

• Chemical Change

• Physical Change

• Both a Physical and Chemcial Change

• Neither a Physical or a Chemcial Change

Convert the following number 67kg =____________________lbs. (1lb = 454g)

• 148 lbs

• 147 lbs

• 6.78 lbs

• 30,418 lbs

Convert the following: 82 in = ______________mm (1in. = 2.54 cm)

• 208.28 mm

• 2082.8 mm

• 32.28 mm

• 322.8 mm

Which of the following is an example of a physical change?

• bubble are caused when we mix two chemcials together

• you burn a piece of paper

• you bake a cake for your mom

• you drop a mug and it breaks into pieces

Which of the following properties stays the same during both types of changes (chemical and physical)?

• density

• shape

• mass

• particle arrangement