What's in a Name?
the formula and name of the ionic compound that is formed by lithium and oxygen
what is lithium oxide, Li2O
A change that does not produce a new substance, and a change that produces a new substance (2 answers)
What is a Physical Change.
What is a Chemical Change.
Elements in group 1 are called
the alkali metals
This is when a gas changes to a liquid.
What is condensing
the number of protons in the atom is represented by this
What is the atomic number
The Nuclear Model was made by
Ernest Rutherford
A measure of how much mass is contained in a given unit volume (definition)
what is density
Family 2 is called this
What are alkaline earth metals
anything that has mass and takes up space is called
what is matter
the number of protons and neutrons in an atom is represented by this
What is atomic mass
The point at which no more solute can be dissolved
What is saturation point
Which wave travels the fastest: gamma rays waves, ultraviolet waves, or microwave waves
all waves travel at the same speed (3.00 x 108 m/s)
What are the transition metals also called
What is the density of an object that has a mass of 10 grams and a volume of 2 mL?
What is 5 g/mL?
The speed of light is a constant, and has a speed of what
what is 3.00 x 108 m/s
Which of the following is ionic, covalent, a diatomic, or an element:
N4C4, He, N2, NaCl
what is covalent, element, diatomic, and ionic
Which state of matter has a definite volume and a not definite shape?
What is liquid?
Who rearranged the modern periodic table to be in order of increasing atomic mass?
Who is Dmitri Mendeleev
How many nonsignificant zeros are in 005200300.00100
How many Mg are in 1.45 x 10-8 kg
What is 1.45 x 10-11 Mg
What are the 4 signs of a chemical reaction taking place?
What is
1) temperature change
2) color change
3) bubbles (production of a gas)
4) formation of solids (precipitate)
What two things effect atomic radius?
what is proton pulling power and energy levels
Why is Kelvin used in chemistry?
What is directly proportional to energy (has a starting point of 0, and no negative numbers)
calculate the subatomic particles for the isotopes of hydrogen
protium: p+=1, n0=0, e-=1
deuterium: p+=1, n0=1, e-=1
tritium: p+=1, n0=2, e-=1