Balancing Equations
Balance the following equation:
___ H2 + ____ O2 ---> ____ H2O
2, 1, 2
What does a beta particle consist of?
1 electron
Electrons are shared in a ____________ bond.
covalent
What is the family name of group 17?
halogens
Fill in the missing information:
Protons: 10
Neutrons: 13
Electrons: 9
Atomic Number:
Atomic Mass:
Overall Charge:
atomic # - 10
atomic mass - 23
overall charge: +1
How many hydrogen atoms are in the reactants?
2HCl + CaCO3 ---> CaCl2 + H2O + CO2
2
Which particle travels farther? Alpha or beta?
beta
What charge do elements in group 2 form?
+2
What type of energy is present during section A?
kinetic
What is the mass of an object that has a density of 14g/cm3 and a volume of 5cm3?
70g
What law are we following when we balance chemical equations?
The law of conservation of mass.
What does an alpha particle consist of?
2 protons, 2 neutrons
What would the name be for a bond between carbon and sulfur?
carbon trisulfide
Find the density of an object that has a mass of 15g and a volume 20mL.
0.75g/mL
Write the equation for Hg-200 after TWO rounds of alpha decay.
Os-192
___C3H8 + _____ O2 ----> _____CO2 + _____H2O
1, 5, 3, 4
Write the equation for Zr-91 after one round of beta decay.
Nb-91
What would the formula be for a bond between nitrogen and chlorine?
NCl3
What are the three characteristics of an isotope?
same protons, different neutrons, different mass
What would the name of the bond be that is formed between sodium and nitrogen?
sodium nitride
___Al(OH)3 + ___H2SO4 + ___Al2(SO4)3 + ___H2O
2, 3, 1, 6
Write the equation for As-75 after one round of alpha decay.
Ga-71
What would the name of the bond be between aluminum and oxygen?
aluminum oxide
What are two characteristics I can expect beryllium (Be) to have?
metal - shiny, malleable, good conductor
List the following in order from most to least ionizing:
alpha particles, beta particles, gamma waves
alpha particles, beta particles, gamma waves