Classifying Matter
This term describes a substance made of only one type of atom, like gold or oxygen.
What is an element?
Color, odor, and density are examples of this type of property.
What is a physical property?
In the number 0.00420, this many digits are significant.
What is 3?
To convert 5.6 km to meters, you multiply by this conversion factor.
What is 1000 m / 1 km?
This term describes how close a measured value is to the true or accepted value.
What is accuracy?
The two forms an element can be in.
What is monoatomic and diatomic?
Flammability and reactivity are examples of this type of property.
What is a chemical property?
When adding or subtracting measurements, your answer must be rounded to match the least number of these.
What are decimal places?
This is the metric prefix meaning one-thousandth (10⁻³) of a base unit.
What is milli-?
This term describes how close repeated measurements are to each other, regardless of whether they're correct.
What is precision?
Salad is an example of this.
A solid formed during a chemical reaction is called this.
What is a precipitate?
2 × 10³ has this many significant figures.
What is 1?
Converting 2.5 liters to milliliters gives this value.
What is 2500 mL?
This state of matter has an indefinite shape and an indefinite volume.
Gas
A blend of salt and water, where the salt is dissolved evenly throughout, is an example of this.
What is a homogenous mixture?
This is the type of property solubility is. (2)
What is physical and intensive?
The result of 12.11 + 18.0 + 1.013, properly rounded to the correct number of sig figs, is this value.
What is 31.1?
To convert a temperature from Celsius to Kelvin, you perform this mathematical operation.
What is adding 273.15?
This is 5,502 in scientific notation.
5.502 x 103
Brass (a blend of copper and zinc) is an example of this.
What is a homogenous mixture (alloy)?
Changes in state of matter are classified as this type of change.
What is a physical change?
When solving a unit conversion problem, these don't count toward SigFigs.
What is a conversion factor?
A patient is prescribed a medication dose of 250. mg per 1 kg of body weight. For a patient who weighs 154 lbs, this is their total dose in grams (1 kg = 2.205 lbs).
What is 17.4g?
This is the density of a ring with a mass of 38.0 g and a volume of 4.5 cm³.
8.4 g/cm³