Chemistry Semester 1 Review

A pure substance whose atoms are of the same type is called:

• Mixture
• Element
• Compound

How many liquids in the cylinder are less dense than water?

• 3
• 2
• 5

Object B displaces water. Initial water level in a graduated cylinder is 20mL, and when object B is placed in water, the final water level is 28 mL. If its density is 6g/ mL, what is its mass in grams?

• 48 g
• 168 g
• 1.3 g
• 120 g

Write 0.00278 in scientific notation.

• 2.78x 10^ 3
• 2.78x 10^-4
• 2.78x 10^-3
• 2.78x 10^4

Convert 1.76 x 10^ -3 into standard notation

• 0.00176
• 0.0176
• 176000
• 1760

What is a property of both matter and energy?

• They both have weight
• They both take up space
• Both cannot be created nor destroyed
• They don't have any properties in common

• A
• B
• C
• D

• a
• b
• c
• d

When you touch an object and it feels hot, is it giving you energy or taking energy from you?

• Giving you Energy
• Taking your Energy

How much energy is absorbed to bring 250g of room temperature water (25 C) to boiling temperature (100 C), knowing the specific heat of water is 4.18 J/gC