Classification of Matter
Anything that takes up space & has mass.
What is matter?
Ice melting.
What is a physical change?
Pouring a liquid off while keeping the solid at the bottom.
What is decanting?
What is density? What is the density formula?
CER
What is Claim, Evidence, & Reasoning?
Properties of this substance make it easy to separate by physical properties & has a uniform composition.
What is a homogeneous mixture?
Identity stays the same.
Separating mixtures exploits . . .
What is different chemical/physical properties?
A block has the density of 1.31 g/cm^3, will is sink or float on water?
What is it will sink?
Particles in the nucleus.
What are protons and neutrons?
Classify the substances that make up a "Pure Substance"
What is an element, molecule, & compound?
Signs of a chemical reaction.
What is light, gas, temperature change, precipitate, or color change?
Boiling a two compounds in a liquid state in order to recondense one back into a liquid.
What is distillation?
What is density = 10 g/cm^3?
Water boils at 100 degrees C.
What is a physical property?
Identify the following molecular diagram.
What is a molecule?
Decomposing leaves.
What is a chemical change?
Cu filings in H2O
What is filter?
Density = 2 g/mL; Volume = 10 mL
An insoluable solid that forms from two liquids
What is a precipitate?
Identify the following molecular diagram.
What is a heterogenous mixture?
Chewing your food.
What is a physical change?
Separate: KNO3 + sand + Ni (nickel) filings
What is use a magnet, add water, filter w/ funnel/filter paper, & boil?
Put in order: A (1.32 g/ml), B (0.123 g/mL), C (5.67 g/cm^3).
What is C, A, B?
16 protons, 18 neutrons, 15 electrons
What is Sulfur?