Section 1
anything that has mass and takes up space
matter
the amount of matter in an object
mass
the ability to do work
energy
How many elements are in the following compound
NaCl
2-
Na- sodium
Cl- cholorine
a pure substance that cannot be broken down into any other substance
element
the amount of space an object takes up
volume
energy that always flows from warmer matter to cooler matter
Thermal Energy
How many atoms are in the following compound
Na(SO4)3
16
The smallest particle of matter
atom
measurement that can change depending on the gravitational pull
weight
new substances are formed when matter undergoes
chemical change
If you dissolve 20g of salt into 100g of water. How much mass would the solution contain?
120g
Which of the following is a solution?
pure water, fruit punch, cereal and milk in a bowl
fruit punch
What two quantities are needed to measure density?
mass and volume
states that matter is neither created nor destroyed
the law of conservation of matter
An object has a mass of 32.5 grams and a volume of 6.5ml. What is the density of the object?
5g/ml
made of two or more elements that are chemically combined
compound
Water is an example of a
compound
the rapid combining of fuel with oxygen results in which chemical change
combustion
The density of a solution is 30g/ml and the volume is 5 ml. What is the mass of the solution?
150g