Ivy tech Chem 101 Midterm exam with
|\ |\ |\ |\ |\ |\ |\
answers
The definition of a scientific law is - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
✔✔a number of similar observations generalized into a
|\ |\ |\ |\ |\ |\ |\ |\
brief statement summarizing past observations and
|\ |\ |\ |\ |\ |\
predicting new ones |\ |\
Which statement about a hypothesis is TRUE - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔All of the above statements are true. |\ |\ |\ |\ |\ |\ |\
Which of the following is an example of a scientific law -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔In a chemical reaction, matter is
|\ |\ |\ |\ |\ |\ |\ |\
neither created nor destroyed. |\ |\ |\
A sample of wood with a mass of 3.0 grams was burned in
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
an open dish. The ashes weighed 1.2 grams. What
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
happened to the rest of the wood? - CORRECT ANSWERS|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
✔✔The remaining 1.8 grams was converted into gaseous
|\ |\ |\ |\ |\ |\ |\ |\
compounds.
Which statement would NOT be an example of
|\ |\ |\ |\ |\ |\ |\
"quantification" - CORRECT ANSWERS ✔✔The water in
|\ |\ |\ |\ |\ |\ |\ |\
the swimming pool feels colder than it was yesterday.
|\ |\ |\ |\ |\ |\ |\ |\
, A popular science demonstration is to take several liquids
|\ |\ |\ |\ |\ |\ |\ |\
that will not mix together and "stack" these liquids in a
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
tall glass cylinder. Suppose the following three liquids
|\ |\ |\ |\ |\ |\ |\ |\
were places in the same tall, narrow glass cylinder:
|\ |\ |\ |\ |\ |\ |\ |\
SUBSTANCE DENSITY (g/mL) |\ |\
vinegar 1.01 |\
motor oil 0.87 |\ |\
corn syrup 1.36|\ |\
These liquids would stack in which order? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔motor oil on top, vinegar in the middle, corn |\ |\ |\ |\ |\ |\ |\ |\ |\
syrup on the bottom
|\ |\ |\ |\
Suppose a boat engine leaks 938 mL of oil into a lake. The
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
mass of this spilled oil is 823 g. The oil will not mix with
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
the lake water. Which statement is true? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔The oil will float because its density of |\ |\ |\ |\ |\ |\ |\ |\ |\
0.877 g/mL is less than the density of water.
|\ |\ |\ |\ |\ |\ |\ |\
Determine the answer to the following equation with |\ |\ |\ |\ |\ |\ |\ |\
correct number of significant figures:
|\ |\ |\ |\
2.02+8.102-0.0297= - CORRECT ANSWERS ✔✔10.09 |\ |\ |\ |\
|\ |\ |\ |\ |\ |\ |\
answers
The definition of a scientific law is - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
✔✔a number of similar observations generalized into a
|\ |\ |\ |\ |\ |\ |\ |\
brief statement summarizing past observations and
|\ |\ |\ |\ |\ |\
predicting new ones |\ |\
Which statement about a hypothesis is TRUE - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔All of the above statements are true. |\ |\ |\ |\ |\ |\ |\
Which of the following is an example of a scientific law -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔In a chemical reaction, matter is
|\ |\ |\ |\ |\ |\ |\ |\
neither created nor destroyed. |\ |\ |\
A sample of wood with a mass of 3.0 grams was burned in
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
an open dish. The ashes weighed 1.2 grams. What
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
happened to the rest of the wood? - CORRECT ANSWERS|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
✔✔The remaining 1.8 grams was converted into gaseous
|\ |\ |\ |\ |\ |\ |\ |\
compounds.
Which statement would NOT be an example of
|\ |\ |\ |\ |\ |\ |\
"quantification" - CORRECT ANSWERS ✔✔The water in
|\ |\ |\ |\ |\ |\ |\ |\
the swimming pool feels colder than it was yesterday.
|\ |\ |\ |\ |\ |\ |\ |\
, A popular science demonstration is to take several liquids
|\ |\ |\ |\ |\ |\ |\ |\
that will not mix together and "stack" these liquids in a
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
tall glass cylinder. Suppose the following three liquids
|\ |\ |\ |\ |\ |\ |\ |\
were places in the same tall, narrow glass cylinder:
|\ |\ |\ |\ |\ |\ |\ |\
SUBSTANCE DENSITY (g/mL) |\ |\
vinegar 1.01 |\
motor oil 0.87 |\ |\
corn syrup 1.36|\ |\
These liquids would stack in which order? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔motor oil on top, vinegar in the middle, corn |\ |\ |\ |\ |\ |\ |\ |\ |\
syrup on the bottom
|\ |\ |\ |\
Suppose a boat engine leaks 938 mL of oil into a lake. The
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
mass of this spilled oil is 823 g. The oil will not mix with
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
the lake water. Which statement is true? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔The oil will float because its density of |\ |\ |\ |\ |\ |\ |\ |\ |\
0.877 g/mL is less than the density of water.
|\ |\ |\ |\ |\ |\ |\ |\
Determine the answer to the following equation with |\ |\ |\ |\ |\ |\ |\ |\
correct number of significant figures:
|\ |\ |\ |\
2.02+8.102-0.0297= - CORRECT ANSWERS ✔✔10.09 |\ |\ |\ |\
