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100
Bases taste
What is bitter?
100
How would 0.00930 m be expressed in scientific notation?
What is 9.30 x 10–3 m?
100
The substance whose Lewis structure shows two covalent bonds is CCl4 CH2Cl2 H2O NH3
What is H2O?
100
Which of the following is an extensive property of matter? 1. Melting Point 2. Boiling Point 3. Volume 4. Density
What is volume?
100
The conjugate of a strong base is a
What is weak acid?
200
What is the formula mass of magnesium chloride, MgCl2?
What is 95.21 amu?
200
A water solution whose pH is 4
What is always acidic?
200
Which of the following is not a physical change? 1. Cutting 2. Burning 3. Boiling 4. Grinding
What is burning?
200
Elements in a group or column in the periodic table can be expected to have similar
What is properties?
200
Which best describes the particles of a liquid compared to those of a gas?
What is less random?
300
What is the formula for zinc fluoride?
What is ZnF2?
300
A chemist interested in the efficiency of a chemical reaction would calculate the
What is percentage yield?
300
Can a standard can be easily changed to suit the experiment?
What is no?
300
Name the compound Al2S3.
What is aluminum sulfide?
300
Air slowly escaping from a pinhole in a tire is an example of
What is effusion?
400
Dalton's atomic theory agrees with modern atomic theory except for the statement that
What is all atoms of the same element have the same mass?
400
Which form of radiation has the greatest penetrating power?
What is gamma?
400
A Brønsted-Lowry acid is a(n)
What is proton donor?
400
What unknown quantity can be calculated after performing a titration?
What is concentration?
400
What is the molarity of an HCl solution if 125 mL is neutralized in a titration by 76.0 mL of 1.22 M KOH?
What is 0.742 M?
500
For the reaction represented by the equation 2H2 + O2 ® 2H2O, how many grams of water are produced from 6.00 mol of hydrogen?
What is 108 g?
500
When the equation NaI + Pb(SO4)2 -> PbI4 + Na2SO4 is correctly balanced, this is the coefficient of NaI.
What is 4?
500
A) Cu(aq) + S(aq) -> CuS(s) B) 3Ca(aq) + 2P(aq) -> Ca3P2(s) C) Fe(aq) + 2Cl(aq) + 2OH(aq) -> Fe(OH)2(s) + 2Cl(aq) Which is NOT a net ionic equation?
What is C) Fe(aq) + 2Cl(aq) + 2OH(aq) -> Fe(OH)2(s) + 2Cl(aq)?
500
If the temperature of a fixed quantity and volume of gas changes, this also changes.
What is pressure?
500
The density of aluminum is 2.70 g/cm3. What is the mass of a solid piece of aluminum with a volume of 1.50 cm3?
What is 4.05 g?