Calculate Density/Mass/Volume
Jack has a rock. The rock has a mass of 6g and a volume of 3cm^3. What is the density of the rock?
2 g/cm^3
Determine the solution's solvent and solute.
Solution = Salt Water
Solvent - Water
Solute - Salt
Describe the color of a school bus.
Yellow and Black
What are the reactants of this chemical reaction?
2 Mg + O2 --> 2MgO
2 Mg + O2
Homogeneous or Heterogeneous:
Coffee
Homogeneous
What is the density of a cube of sugar weighing 11.2 grams measuring 2 cm on a side?
The sugar cube has a density of 1.4 grams/cm3
What is chocolate milk's solvent?
Milk
The term used to describe the temperature at which a liquid turns into a solid.
Freezing Point
The starting material of a chemical reaction
Reactant
Homogeneous or Heterogeneous:
Salad
Heterogeneous
A solution of water and salt contains 25 grams of salt in 250 mL of water. What is the density of saltwater?
The saltwater has a density of 1.1 grams/mL
Coffee is a solution, what is its solute?
Coffee grounds
The Formula to find the density of an object.
D = M/V
How can you tell that a chemical reaction has occurred?
The properties are different from the starting material to the ending material
Homogeneous or Heterogeneous:
The same consistency throughout the mixture
Homogeneous
The density of copper is 8.933 g/cm3. What is the mass of a sample of copper with a volume of 10.00 cm3?
89.33 g
The substance that dissolves into another substance.
Solute
The term used to describe the temperature at which a given solid reaches when it starts to become a liquid.
Melting Point
The ending material of a chemical reaction
Product
Homogeneous or Heterogeneous:
It has a non-uniform composition
Heterogeneous
Find the mass of a piece of metal that has a volume of 1.25 m3 and a density of 3.2 kg/m3.
4 kg
The substance that does the dissolving of another substance.
Solvent
The resistance of a material to localized plastic deformation. Ranges from super ______ materials such as diamond, boron-carbide to other ceramics and ________ metals to soft metals and down to plastics and soft tissues.
Hardness
What are the elements in this chemical reaction?
2 Mg + O2 --> 2 Mg O
Magnesium and Oxygen
What if sand was soluble in water?
There would be no beaches