Physical Properties
What is the density of an object that has a mass of 10 grams and a volume of 2 mL?
What is 5 g/mL?
0-7 on the pH scale are ________.
What are acids.
An element is a substance made up of only one kind of ______?
What is an ATOM?
In a compound, ___________ from different atoms are lost, gained or shared.
What are electrons?
A type of mixture in which different substances are spread out unevenly is called a
What is heterogeneous mixture?
Which substance is more soluble in water: sugar or oil?
What is sugar?
Which is most likely to corrode: a battery, broccoli, bread, or bricks?
What is a battery?
What are the 3 main sections of the periodic table?
What are METALS, NON-METALS, & METALLOIDS?
How many atoms are in the compound represented by the formula C12H22O11?
What is 45 total atoms?
Which of the following is a mixture: granite rock, tin, methane.
What is granite rock?
Which has a greater melting point? Ice or gold?
What is gold?
Which would be the most reactive: magnesium (Mg), gold (Au), helium (He), or mercury (Hg)?
What is magnesium (Mg)?
The 2 most reactive groups of elements are which ones?
What are groups 1 (alkali metals) & 17 (halogens)?
Which of the following is a compound: uranium, Lucky Charms cereal, propane?
What is propane?
Which of the following is a homogeneous mixture: Chex Mix cereal or ketchup?
What is ketchup?
What happens to the molecules in water as heat energy is added?
What is the molecules move faster and farther apart.
Which of the following involves a chemical reaction: condensation, combustion, dissolving, evaporation?
What is combustion?
The least reactive elements belong to which group?
What are the noble gases (group 18)?
How many electrons would sulfur gain or lose to form a compound?
gain 2?
Explain the difference between a homogeneous and heterogeneous mixture.
homogeneous mixtures are evenly mixed throughout heterogeneous mixtures are unevenly mixed.
Which state of matter has a definite volume and a not definite shape?
What is liquid?
What are the 4 signs of a chemical reaction taking place?
What is 1) temperature change 2) color change 3) bubbles 4) formation of solids
Draw the atomic model for carbon.
What is 6 protons & 6 neutron in the nucleus and 6 electrons around the nucleus
How do the properties of a compound compare with the properties of the elements that make it?
They are usually very different.
What is the difference between mixtures and compounds?
compounds are combinations of elements chemically combined, mixtures are combinations of compounds mixed together.