If a sample of gas occupies 20 ml at -132 C what volume does the sample occupy at 50 C
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280 ml
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Which of the following indicates that a chemical change has happened during cooking a The food darkens b Bubbles form in boiling water c Butter melts d Energy is transferred from the stove to a pan
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the food darkens!
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What do you multiply 340 grams by to convert it to kilograms
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divide by 1000 = 0.34 kg
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What is the formula for table surgar
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C h o
12 22 11
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Why does the density of a substance not change with the sample size
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Density = mass / volume
As sample size increases, both mass and volume increase in the
same ratio.
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What is the percentage of a mixture homogeneous
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A homogeneous mixture is 100% homogeneous.
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What is the result of multiplying 2.5 x 1010 by 3.5 x 10-2
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2.5 x 1010 x 3.5 x 10-2 = 88.375
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What is a physical change strawberries left out to mold strawberries cooked into jelly Or strawberries liquefied in a blender
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mold: biochemical change as the fungus digests and eats the berries
cooked: chemical change as heat triggers hydrolysis of proteins and starches in the berries
blended: physical as blender blades chop the berries into puree
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If the particles of matter that make up a substance are relatively far apart and can move freely the substance is in a state.
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This is a gas.
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Cards in this guide (10)
What is 20 plus 88
20 + 88 = 108
If a sample of gas occupies 20 ml at -132 C what volume does the sample occupy at 50 C
280 ml
Which of the following indicates that a chemical change has happened during cooking a The food darkens b Bubbles form in boiling water c Butter melts d Energy is transferred from the stove to a pan
the food darkens!
What do you multiply 340 grams by to convert it to kilograms
divide by 1000 = 0.34 kg
What is the formula for table surgar
C h o
12 22 11
Why does the density of a substance not change with the sample size
Density = mass / volume
As sample size increases, both mass and volume increase in the
same ratio.
What is the percentage of a mixture homogeneous
A homogeneous mixture is 100% homogeneous.
What is the result of multiplying 2.5 x 1010 by 3.5 x 10-2
2.5 x 1010 x 3.5 x 10-2 = 88.375
What is a physical change strawberries left out to mold strawberries cooked into jelly Or strawberries liquefied in a blender
mold: biochemical change as the fungus digests and eats the berries
cooked: chemical change as heat triggers hydrolysis of proteins and starches in the berries
blended: physical as blender blades chop the berries into puree
If the particles of matter that make up a substance are relatively far apart and can move freely the substance is in a state.
Vaporization is the conversion of a liquid to a gas or vapor when the liquid is
Which of these types of energy is endothermic
Each fundamental atomic particle has an opposite particle A collision of these opposites will result in the annihilation of each particle These types of particles are referred to as
Choose the symbol that represents a reversible reaction