States of Matter
Atoms
Density
Physical and Chemical Changes
Chemical Reactions
Endo/Exo Thermic
Endo/Exo Thermic
100
Anything that has mass and takes up space.
What is MATTER?
100
Pure substance made up of 2 or more elements combined. Example: Water (H20)
What is a COMPOUND?
100
Find the density of a piece of metal has a mass of 60g and a volume of 3cm3
What is 20 g/cm3?
100
Why is dissolving salt in water a Physical Change?
What is the salt changes it's state?
100
A chemical reaction that releases energy in the form of heat is.
What is exothermic reaction?
200
Matter that has a definite shape and definite volume
What is a SOLID?
200
Thi s is a type of mixture
What is an HETEROGENOUS?
200
How much Mass (g) in a given Volume (ml or cm3) is
What is DENSITY?
200
In making Pizza which process involves a Chemical Change?
Mixing spices for the sauce
spreading the cheese on the pizza
baking the dough to form the crust
slicing pepperoni for the topping
WHat is baking the dough to form the crust?
200
Endothermic reactions tend to do what
Feel hot as they absorb energy
Feel cold as they absorb energy
Feel hot as they release energy
Feel cold as they release energy
What is feel cold as they absorb energy?
300
Matter that has no definite shape or volume.
What is a GAS?
300
What cannot be broken down into other substances: Compound, Solid, Element, or Mixture.
What is an ELEMENT?
300
Find the density of 90ml of Saltwater that has a mass of 120g.
What is 1.33 g/ml?
300
A Physical change occurs when?
What is the appearance of the substances changes, but its identity does not change.
300
A student mixed baking soda with hydrochloric acid.The reaction bubbled and the temperature went from 52 degrees C to 22 degrees C. What kind of reaction?
What is Endothermic?
400
Matter that has a definite volume, but no definite shape.
What is a LIQUID?
400
Which is a Homogenous Mixture? Soil, Salad, Saltwater or Chili.
What is Saltwater?
400
Given that the density of glycerol is 1.261 g/mL, what would be the volume of 20.00 g of glycerol?
What is 15.86 ml?
400
Are endothermic/exothermic reactions a chemical or physical change?
What is Chemical Change?
400
When freezing water to make ice, energy is released allowing the water molecules to come together and freeze. This is what kind of reaction?
What is Exothermic?
500
superheated matter-so hot that the electrons get ripped away from the atom.
What is PLASMA?
500
Chicken soup is an example of: homogenous mixture, heterogenous mixture, element, compound.
What is a heterogenous mixture?
500
The following liquids are poured in a graduated cylinder. Place the liquids in order of how they will settle in a graduated cylinder.
Maple Syrup 1.37 g/ml
Honey 1.45 g/ml
Vegetable Oil 0.9 g/ml
Water 1.0 g/ml
What is
Vegetable Oil 0.9 g/ml
Water 1.0 g/ml
Maple Syrup 1.37 g/ml
Honey 1.45 g/ml
500
Both Physical and Chemical changes occur during digestion. An example of a Chemical change would be
teeth chewing the food
the mouth swallowing the food
the esophagus moving the food
enzymes breaking down the food
What is enzymes breaking down the food?
500
This is the law that states that matter is not created nor destroyed.
What is the Law of Conservation of Mass?