The number of significant figures in 123.
What is 3?
6.77 x 101 written in standard notation would be this number.
What is 67.7?
10 g = ______ mg
What is 10000 mg?
Solve: 45 days x 1 week
7 days
What is 45/7 or 6.43 weeks?
When drawing the density triangle, this letter goes on top.
What is m (or mass)?
The number of significant figures in 0.0045
What is 2?
8.90 x 10-3 could be taken out of scientific notation by moving the decimal this many places in this direction.
What is 3 places to the left?
The number of mL in 800 cm3.
True or false: conversion factors can be flipped in either direction depending on your starting unit.
Substance A = 0.70 g/mL
Substance B = 0.65 g/mL
Substance C = 1.2 g/mL
A density column is filled with A, B, and C. The three substances separate. This is what the column looks like.
What is
B (least dense)
A
C (most dense)
The type of zero that is never significant.
What is leading zero?
The number 430, written in scientific notation, would have this exponent.
What is +2?
35 DL = __________ dL
What is 3500?
This is where you unit you are looking for goes.
Where is on top of the conversion factor?
Density = 20 g/mL
This is the volume.
What is 0.5 mL?
Trailing zeros are significant if...
there is a decimal present.
0.00035 would be written as this in scientific notation.
What is 3.5 x 10-4?
0.5 cm = ___Hm
What is 0.00005 Hm?
This should always be the first thing you write on your paper. (2 things)
What is the number and unit you are given?
Mass = 30 g
Cube measures 2.0 cm x 2.0 cm x 2.0 cm
This is the density.
What is 3.75 g/cm3?
The number of significant figures in 0.2020
This is where the decimal goes when writing a number in scientific notation.
Where is after the first nonzero number?
The temperature 45oC converted to Kelvin.
What is 318?
1 foot = 12 inches
This is the SETUP for how you would convert 100 inches into feet.
100 in x 1 foot
12 inches
This is how to find the volume of an irregular solid using water displacement. (step by step)
1. Fill a grad. cyl. partway with water.
2. Note initial volume
3. Add substance
4. Note final volume
5. Object's volume = final - initial