Vocab 4 U!
What kinda Changes
Table it
Don't Call me Dense!
Equal but not the Same?
100
Anything that has mass and takes up space
Matter
100
A change in matter that creates new substances.
Chemical change
100
The 10 on this element represents what? (2)
Both the number of protons and atomic number.
100
The circle of truth is made of three parts: ______, _______ and _______.
Density, mass, and volume.
100
The Law of ___________ of mass (or matter) states matter cannot be created nor destroyed. (it changes physically and chemically)
Conservation
200
The smallest unit of an element
atom
200
The three types of physical changes.
Shape, size, and state.
200
The periodic table is divided into rows and columns called:
"Groups" and "Periods"
200
The formula for density::
D=m/v
200
The small number next to the Element2 is called the--
Subscript
300
The amount of matter in a certain volume
density
300
Caramelized sugar on a marshmellow is the sign of a chemical change due to the evidence such as_________, or__________.
Change in color/temperature, or odor change.
300
What is the Atomic Symbol?
Ga
300
Density of C4Cl is 1.59g/ml and has a mass of 26.4g. Find the volume.
Include your formula.
v=m/d
16.6ml
300
You need to (_______) the coefficient and subscript to find the total number of atoms and create a balanced equation.
Multiply
400
A pure substance containing only one kind of atom
Element
400
Flammability is a physical or chemical property?
Chemical Property.
400
What would be an appropriate guess for Neon atomic mass?
20
400
The object has a mass of 23 grams and the volume of 10 ml. Calculate the density.
Include your formula.
D=m/v
2.3g/ml
400
Is this balanced?
CuO + H2 -> Cu +H2O
Yes
500
The ability of a substance to be pounded into thin sheets or bent without breaking.
Malleability
500
Can there both a physical and chemical change at the same time?
Yes,
(candle burning: wick burning and the wax changes state)
500
Lithium to Francium are what group?
Alkali Metals
500
Calculate the density of a piece of metal.
The rectangular piece of solid metal has the dimensions of 2cm3, 3 cm3, and 4 cm3.
The unidentified metal has a mass of 43 grams.
Include your formula.
d=m/v
1.79g/cm3 or 1.8g/cm3
500
Balance this equation please!
__NH4NO3 -> __N2O + __H2O
1NH4NO3 -> 1N20 + 2H2O