chem chapter 1

Question 1

What is the independent variable in an experiment?

Answer 1

it is the variable manipulated by the experimenter.

Question 2

What is the dependent variable?

Answer 2

It is the variable that is affected by the independent variable.

it is what you are trying to measure

Question 3

Accuracy

Answer 3

how close what you got is to the true value

Question 4

precision

Answer 4

your results being within the same range/area?

Question 5

3 Rs

Answer 5

reproducibility, reliability, repeatability

vcaa test this

Question 6

SIG FIG rules

Answer 6

• start counting when u come across a first digit that is not a zero
• when adding/subtracting answer is expressed in decimal places
• when multiplying/dividing answer is expressed in sig figs
• don’t round off too soon during your calculation