Balance Equations
____H2O2 → ____H2O + ____O2
2:2:1
How much kinetic energy is in 4 kg rock moving at 8 m/s? Include units for credit
128 J
What two things will an elements atomic number represent?
number of protons and electrons
When an acid is in a solution, what does it form?
H+ ions
Which state of matter has the most energy?
Plasma
____N2 + ____H3 → ____NH3
1:2:2
Draw and label the electromagnetic spectrum in order
radio, infrared, visible, ultraviolet, x-ray, gamma ray
How many neutrons does gold have?
Atomic Number: 79
Atomic Mass: 197
118
When a base is in a solution, what does it produce?
OH- ions
What is the equation for the ideal gas law?
____MgCl2 + ____NaOH → ___Mg(OH)2 + ____NaCl
1:2:1:2
A toaster is plugged into an outlet and heats up toast, draw and label the energy transformation
electrical to thermal
What is an isotope?
same element with a different number of neutrons
What numbers does the pH scale range from?
0-14
Draw the phase change diagram including all states of matter, x and y axis, and phase changes
Teacher will grade
____C2H6(g) + ___O2(g) --> __CO2 + ___H2O
2:7:4:6
draw a fusion reaction (label everything)
smaller nuclei becoming larger nuclei and splitting into a nucleus and neutrons giving off energy
How many elements are on the periodic table?
118
Give three characteristics of an acid
sour, turns litmus paper red, sticky feeling, 0-6pH, has electrolytes
A gas is held at a constant temperature with a pressure of 10 and a volume of 5. The pressure is increased to 25. What is the new volume of the gas?
2
__C57H110O6 + __O2 --> __CO2 + __H2O
2:163:114:110
Neutron hitting nucleus splitting into neutrons and smaller nuclei
Which group on the periodic table is the least reactive?
Group 18 - noble gases
Write the neutralization reaction
HCl + NaOH --> NaCl + H2O
A gas is held at a constant pressure with a temperature of 20 degrees Celsius and a volume of 10. The temperature is increased to 40 degrees Celsius. What is the new volume of the gas?
20