Chemistry Basic Test

UB ForumCategory: QuestionsChemistry Basic Test
AliyaAliya Staff asked 4 years ago

Question 1. The scientific method is a common sense, systematic approach to solving problems
True
False

Question 2. The number 48275 written in correct scientific notation is ___ .
4.8275 x 10^-4
4,8275
4.8275
4.8275 x 10^4

Question 3. When a gas is cooled, the volume of the gas will ___ .
expand
contract
no change
who cares?

Question 4. You discover your car will not start on a cold day. You think maybe it is due to a dead battery. Using the scientific method, this is an example of a ___ .
theory
observation
hypothesis
experiment

Question 5. Which of the following units is NOT a unit of mass?
gram
cm3
kilogram
miligram

Question 6. The nucleus of an atom is found in the ___ of it.
center
outskirts
not in a central place
none of the above

Question 7. The log 5.75 is _0.76__ .

Question 8. A chemical bond is ___ .
a force of attraction between two atoms in a compound.
made up of protons
made up of neutrons
formed rom the attraction of protons and electrons

Question 9. The ln 2.75 (that is, the natural logarithm which is written as ln) is _1.01__ .

Question 10. The chemical formula for sodium chloride is _NaCl__ .