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What does homogenous mean?
The same/ uniform
What side of the periodic table will you find Nonmetals?
Right side
Density is equal to volume divided by mass, True or False?
False
If a new substance has formed, does that indicate that a chemical or physical change has occurred?
Chemical change
What does uniform mean?
The same throughout.
Which elements are located on the zigzag line?
Metalloids
Is density a physical or chemical property?
Physical.
Does Kool Aid indicate a chemical change?
No, physical change.
Bonus- its a solution
Is bronze a pure substance?
No
Bonus:
It is a mixture of tin and copper
Which elements are malleable and ductile?
Metals
The density of water is 1.0 g/mL, which one will float? An oil with a density 0.5 g/mL or an oil with a density of 1.5 g/mL?
What are the 5 factors of a chemical change?
Odor, gas/ bubbles, non reversible color change, precipitate, and temperature change.
What kind of mixture is air?
Homogenous
If a substance has luster, is brittle, and is a fairly good electrical conductor, is it a nonmetal, metal, or metalloid?
Metalloid
Substance A has a density of 0.8 g/mL, substance B has a density of 1.5 g/mL, substance C has a density of 0.7 g/mL, and substance D has a density of 1.4 g/mL. What is the order from greatest density to lowest density?
B, D, A, C
What are the indications for a chemical reactions from fireworks?
Sound, color, smell, production of light, and temperature change
Is hydrogen peroxide a pure substance?
Yes.
Bonus:
What is the chemical formula?
Will the noble gases combine or react with other elements?
No.
If you add salt in water, does it increase the density of the water?
Yes.
When there is an increase in temperature, is this exothermic or endothermic?