Ivytech Chem 101 Midterm questions with \| \| \| \| \| \|
answers
The definition of a scientific law is - CORRECT ANSWERS ✔✔a
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number of similar observations generalized into a brief
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statement summarizing past observations and predicting new
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ones
Which statement about a hypothesis is TRUE - CORRECT
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ANSWERS ✔✔All of the above statements are true.\| \| \| \| \| \| \|
Which of the following is an example of a scientific law -
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CORRECT ANSWERS ✔✔In a chemical reaction, matter is neither
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created nor destroyed. \| \|
A sample of wood with a mass of 3.0 grams was burned in an
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open dish. The ashes weighed 1.2 grams. What happened to the
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rest of the wood? - CORRECT ANSWERS ✔✔The remaining 1.8
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grams was converted into gaseous compounds.
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Which statement would NOT be an example of "quantification" -
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CORRECT ANSWERS ✔✔The water in the swimming pool feels
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colder than it was yesterday.
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A popular science demonstration is to take several liquids that
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will not mix together and "stack" these liquids in a tall glass
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, cylinder. Suppose the following three liquids were places in the
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same tall, narrow glass cylinder:
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SUBSTANCE DENSITY (g/mL) \| \|
vinegar 1.01 \|
motor oil 0.87 \| \|
corn syrup 1.36 \| \|
These liquids would stack in which order? - CORRECT ANSWERS
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✔✔motor oil on top, vinegar in the middle, corn syrup on the
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bottom
Suppose a boat engine leaks 938 mL of oil into a lake. The mass
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of this spilled oil is 823 g. The oil will not mix with the lake
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water. Which statement is true? - CORRECT ANSWERS ✔✔The oil
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will float because its density of 0.877 g/mL is less than the
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density of water. \| \|
Determine the answer to the following equation with correct
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number of significant figures: \| \| \|
2.02+8.102-0.0297= - CORRECT ANSWERS ✔✔10.09 \| \| \| \|
How many milliliters are in 17.5 L - CORRECT ANSWERS ✔✔1.75
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x 104 mL
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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 \| \| \| \|
How many milliliters are in 17.5 L - CORRECT ANSWERS ✔✔1.75
\| \| \| \| \| \| \| \| \| \| \|
x 104 mL
\| \|
