Metrics system
The number is the metric system based on
What is 10?
Another name for the systematic approach to solve problems used by scientists
What is the scientific method?
What is the Kelvin temperature of a substance that has a Celsius temperature of 54 degrees?
327 Kelvin
The name of the lab item used to accurately measure the volume of liquids?
graduated cylinder/beaker
How many sig figs are there in 5.896
4
The base unit for mass
What is the gram
The first step of the scientific method
What is make an observation?
What is the Celsius temperature of a sample of water that has a Kelvin temperature of 263. Is this substance a solid, liquid, or gas?
-10 degrees Celsius solid
A student calculated the density of a sample of copper to be 7.96 g/cm^3. The accepted value is 8.96 g/cm^3. What is the students percent error?
11.2% error
How many sig figs are there in 0.00506900
6
103m=1 cm
1m = 109 nm
103km =1m
The equivalency above that is correct.
What is 1m =109nm
The variable that is observed or measured in an experiment
What is the dependent or responding variable
What is the mass of an object that has a density of 0.867g/cm3 and a volume of 24.3cm3? Will this object sink or float in water?
21.1 g
In an experiment the mass of a sample of citric acid is calculated to be 2.83 g. When the sample is weighed on an electronic balance the actual mass is found to be 2.74 g. What was the student's percent error in their calculation?
3 % error
When adding and subtraction how do you determine how many sig figs the answer should have?
least accurate or least amount of decimal places in the original numbers.
One metric prefix that makes the base unit larger.
What is kilo, or mega, or giga?
The name of the variables that are unchanged in an experiment?
What is constants or controls?
If a rock has a mass of 16.20 g and displaces a 15.0 mL container of water to the 23.6 mark. What is the density of the rock?
1.9 g/mL
In the lab you find that the atomic mass of oxygen in 18.0 amu. In all published texts, the value is 15.99 amu. What is your % error?
13% error
Calculate the answer with the proper sig figs 2.59 s * 6.8 s =?
18 s2
The number of microliters are in 1L?
106
Theory, Observation or scientific law?
When wood is burned in a closed container, the mass of the materials before the reaction is equal to that if the mass of the materials after the reaction.
What is observation
If a piece of copper has a density of 8.96 g/cm^3 and when placed into a container weighing 2.9 g creates a mass of 20.7 g. What is the copper's volume?
1.99 cm3
When completing an experiment students are to determine the density of a sample of magnesium. The students know that the density of magnesium is 1.74 g/cm^3. While completing the experiment the students determine the density of the magnesium to be 1.82 g/cm^3. What is the students percent error.
5 % error
Calculate the answer with proper sig figs (1.46 g + 7.801 g + 9.5 g)/2.784mL = ?
6.75 g/mL