RIO SALADO CHEM 130 ACTUAL EXAM PAPER 2026 QUESTIONS WITH SOLUTIONS GRADED A+

RIO SALADO CHEM 130 ACTUAL EXAM PAPER
2026 QUESTIONS WITH SOLUTIONS GRADED
A+



◉ Steps of the Scientific Method . Answer: 1. Observation
2. Hypothesis
3. Experiment
4. Conclusion


◉ Metric system . Answer: Length (meter), Volume (liter), Mass
(gram), Temp. (C), Time (second)


◉ SI system . Answer: Length (meter), Volume (cubic meter), Mass
(kilogram), Temp. (kelvin), Time (second)


◉ Scientific Notation . Answer: a coefficient, a power of 10, and a unit
of measurement. (Ex. 8.6 x 10-4 g)


◉ Measured Number . Answer: numbers you obtain when you measure
a quantity using a measuring tool

, ◉ Significant Figures . Answer: are all the digits including the
estimated digit. All nonzero numbers are counted as significant figures.


◉ Exact Numbers . Answer: numbers obtained by counting items or
using a definition that compares two units in the same measuring
system.


◉ Kilo- . Answer: 1 000


◉ mega- . Answer: 1 000 000


◉ deci- . Answer: 0.1


◉ centi- . Answer: 0.01


◉ milli- . Answer: 0.001


◉ micro- . Answer: 0.000 001


◉ Conversion Factors . Answer: An equality written as a fraction.


◉ Density . Answer: mass/volume (Ex. 68 g/9.5 mL)