Show:
Element Names and Symbols
SI Units of Measurement
Scientific Notation
Sig Figs
Miscellaneous
100
What is the element with the symbol H?
Hydrogen
100
What is the base unit of length?
meters
100
True or false: in scientific notation, the base number must be a value between 1 and 10.
True
100
Daily Double! What are the three rules for counting significant figures?
1. All nonzero digits are significant. 2. All zeroes to the right of BOTH a decimal AND a nonzero digit are significant. 3. All zeroes sandwiched between other sig figs are significant.
100
What is a conversion factor?
A ratio of equivalent values having different units
200
What is the element with the symbol P?
Phosphorus
200
What is the base unit of volume?
liters
200
True or false: in scientific notation, the exponent cannot be a decimal.
False
200
How many sig figs are there in the number 58?
2
200
What is the name and use of this piece of laboratory equipment?
Erlenmeyer Flask - for mixing and/or swirling liquids
300
What is the symbol for the element iron?
Fe
300
For what type of measurement is K the base unit?
temperature
300
What is the basic notation for 3.5 x 103?
3500
300
How many significant figures are there in the number 7.90?
3
300
A student is carrying out an experiment to test the effect of different amounts of food on the amount of time a mouse sleeps. What are the independent and dependent variables?
Independent variable: amount of food Dependent variable: amount of time the mouse spends asleep
400
What is the symbol for the element Manganese?
Mn
400
What does the prefix "milli-" mean?
1/1000th
400
What is the scientific notation for 0.0334?
3.34 x 10-2
400
Round the following number to 4 sig figs: 62.7394
62.74
400
What is the main goal of dimensional analysis?
To convert a value from one unit (or set of units) to another
500
What is the element with the symbol As?
Arsenic
500
What prefix means 1000 of the base unit?
kilo
500
What is the scientific notation for 307000?
3.07 x 105
500
Round the following number to 2 sig figs: 108,428
110,000
500
What is a source of error inherent in the use of this piece of glassware?
Reading at the wrong place on the meniscus.