Solutions and Mixtures
Balancing Chemical Equations
Density Calculations
Laboratory Science
Miscellaneous
100
A measure of how much solute there is in a solvent
What is concentration?
100
_NaBr + KCl --> KBr + NaCl
What is 1?
100
A substance has a mass of 4 g and 8 mL
What is 0.5 g/mL?
100
The device used to measure temperature
What is thermometer?
100
The measurement that changes when an obejct is taken to the moon, or to Jupiter
What is weight?
200
Substance in which the components are not chemically combined, but just physically combined.
What is a mixture?
200
What this is called: H2 + FeO2--> H2O + Fe
What is an unbalanced chemical equation?
200
What a substance with a density of 0.01 g/cm3 would do if placed in water?
What is float?
200
The device used to measure mass
What is a balance?
200
The chemical change by which a substance adds more oxygen, usually as an orange crumbly oxide
What is oxidation?
300
The most commonly used solvent in any chemistry lab
What is water?
300
What the big number out in front in a balanced equation is called. Ex: 2 HCl + Fe --> H2 +FeCl2
What is the coefficient?
300
The formula to calculate density
What is mass divided by volume?
300
The standard unit of mass we use in the lab
What is a gram?
300
The repulsive smelling base that is a component of cat urine, but can also be used to clean windows
What is ammonia?
400
A mixture of metals
What is an alloy?
400
What the little number, like in H2, is called, that tells us how many atoms are present
What is the subscript?
400
Which is the most dense out of a gram of hydrogen gas, a gram of xenon gas, a gram of watre, or a gram of gold
What is a gram of gold?
400
A physical property that must be calculated, not measured
What is density?
400
The pH scale ranges between these numbers
What is from 0-14?
500
Oobleck (cornstarch + water) is neither a liquid nor a solid, but is rather this.
What is a non-Newtonian fluid?
500
What the notation H2 stands for ( as opposed to, for example, just H)
What is a molecule of hydrogen?
500
Even if you change the mass of a substance (like if you cut it in half), the substance will always have the same ____.
What is density?
500
The reason why it would be unsafe for a student to try to produce a baloon of hydrogen gas at home
What is because it's explosive?
500
The measurement of the amount of space an object takes up
What is volume?
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