WVU CHEM 115 EXAM 1 QUESTIONS AND ACCURATE
ANSWERS A+ GRADED
What is anything that has mass and takes up space? - ANSWER Matter
What is it called when something is observed without the chemical makeup being changed? -
ANSWER Physical Property
What is it called when a substance undergoes a change? - ANSWER Chemical Property
What rearranges molecules, but doesn't affect their internal structures? - ANSWER Physical
Change
What is the result in the formation of a new substance? - ANSWER Chemical Change
What are independent of sample size? - ANSWER Intensive Properties
What depends on the amount of material examined? - ANSWER Extensive Properties
What is a substance that cannot be broken down into simpler substances? - ANSWER Element
, What is it called when two or more different elements combine in a fixed proportion? -
ANSWER Compound
What consists of varying amounts of two or more elements or compounds? - ANSWER
Mixture
Solutions that have the same properties throughout the sample are called a: - ANSWER
Homogeneous Mixture
What is a mixture that consists of two or more phases? - ANSWER Heterogeneous Mixture
How many grams are in a Megagram (Mg)? - ANSWER 1,000,000
How many grams are in a kilogram (kg)? - ANSWER 1,000
How many decigrams (dg) are in a g? - ANSWER 10
How many centigrams (cg) are in a g? - ANSWER 100
How many milligrams (mg) are in a g? - ANSWER 1,000
How many micrograms (ug) are in a g? - ANSWER 1,000,000
ANSWERS A+ GRADED
What is anything that has mass and takes up space? - ANSWER Matter
What is it called when something is observed without the chemical makeup being changed? -
ANSWER Physical Property
What is it called when a substance undergoes a change? - ANSWER Chemical Property
What rearranges molecules, but doesn't affect their internal structures? - ANSWER Physical
Change
What is the result in the formation of a new substance? - ANSWER Chemical Change
What are independent of sample size? - ANSWER Intensive Properties
What depends on the amount of material examined? - ANSWER Extensive Properties
What is a substance that cannot be broken down into simpler substances? - ANSWER Element
, What is it called when two or more different elements combine in a fixed proportion? -
ANSWER Compound
What consists of varying amounts of two or more elements or compounds? - ANSWER
Mixture
Solutions that have the same properties throughout the sample are called a: - ANSWER
Homogeneous Mixture
What is a mixture that consists of two or more phases? - ANSWER Heterogeneous Mixture
How many grams are in a Megagram (Mg)? - ANSWER 1,000,000
How many grams are in a kilogram (kg)? - ANSWER 1,000
How many decigrams (dg) are in a g? - ANSWER 10
How many centigrams (cg) are in a g? - ANSWER 100
How many milligrams (mg) are in a g? - ANSWER 1,000
How many micrograms (ug) are in a g? - ANSWER 1,000,000
