Lab Equipment and Procedures
What do you call a wide, open container with a flat bottom made of glass or plastic, used to mix, heat, or hold substances? (Hint: top rim of this item usually has a lip)
A Beaker
Is a PH of 8.0 Acidic, Basic, or Neutral?
Basic
When two atoms bond and form a compound, what kind of chemical reaction occurs?
Synthesis
How many atoms are there in sucrose (C12H22O11)?
45
What are the three types of radioactivity waves?
Alpha, Gamma, Beta.
How do you accurate measure mass?
A balance.
What molecule is present in all acids?
H+
What are the two main products in a combustion reaction?
H2O and CO2 or Water and Carbon Dioxide
About how many electrons weigh as much as a proton?
2000
What is the highest energy form of radiation?
Gamma rays.
What does a reactivity rating mean?
Likelihood to react.
What molecule is present in all bases?
OH-
Balance this chemical equation (give coefficients):
O2 + CH4 => H2O + CO2
2, 1, 2, 1
How many naturally occuring elements are there on the periodic table?
92
a. What is the most powerful: Fission or Fusion?
b. What process does the Sun do to create energy: Fission or Fusion?
a. Fusion
b. Fusion
What are the main types of Flasks?
Erlenmeyer, Florence, and Volumetric.
pH is the concentration of what molecule?
H3O+
What are the five types of chemical reactions?
Single replacement, double replacement, combustion, synthesis, decomposition.
What’s the atomic number of Gold?
79
Which type of radiation is not radioactive?
Alpha Radiation
What does the top number on a chemical safety information symbol mean?
Flammability rating.
What is the approximate pH of Bleach? (Within 1.0)
12.5
Which is higher on the activity series for metals — Lead, Copper, Mercury, or Silver?
Lead
What element is the symbol for Bh?
Bohrium
What is the device to measure radioactive emissions invented by Johannas Wilhelm Geiger?
The Geiger Counter