Particles 1
When 25 mL of water and 25 mL of ethanol are mixed, why does it not equal 50 mL?
The water and ethanol particles are different sizes.
The particles are the same size and evenly mixed in a......
Solution
When you put a thermometer in hot water, the particles in the thermometer do what?
Speed up.
In which state of matter are the particles the densest?
Solid
What is the measurement of the average kinetic energy (speed) of the particles in an object?
Temperature
Particles in a solid move....
Slow
When the particles are two different sizes and do not mix evenly, this is called....
Suspension
When you put a thermometer in cold water, the particles in the thermometer do what?
Slow down
In Kool-aid, what is the solvent?
Water
What is the measurement of the amount of space an object takes up?
Volume
Particles in a gas move....
Fast
Does the density and speed increase or decrease when the tanker implodes?
Decreases.
What is the solute in saltwater?
Salt
Is 1.02 g/mL or 1.38 g/mL more dense?
1.38g/mL
For an object to float in water, the mass must be (blank) than the volume?
Less than
Why can you smell the vanilla that is inside the balloon?
The vanilla particles are smaller than the balloon particles.
At night its cold, the garbage does not smell. The next day it is hot outside and the garbage starts to smell. Why?
The particles are heated and start to move faster.
Which state of matter has the strongest attractive/repelling forces?
Solid
What is the formula for solving density?
D=m/v
In a (blank) reaction, heat energy is released.
Exothermic
In a chemical equation, it would be (blank) ->yields-> (blank).
Reactants ->yield-> Products
The Law of (blank) states that matter cannot be created or destroyed.
Conservation of Mass (matter)
In which state of matter do the particles move the fastest?
Gas
The mass of an object is 20 grams. The volume is 10 cm3. What is the density?
Density= 2 g/cm3
In a (blank) reaction, energy is absorbed.
Endothermic