Matter-1
What is matter?
Anything that takes up space and has mass.
What does the law of conservation of mass state?
It states that mass cannot be created or destroyed
What is the difference between mass and weight?
Weight considers gravitational forse.
Which of the following is NOT an example of matter?
A. Light
B. Ice
C. Gasoline
D. Clouds
Light
What is a mixture?
Matter made of more than one kind of particle not chemically combined .
Is it weight or mass that is constant in every place in the universe?
Mass
What is the only type of matter to exist in all three states on Earth?
water
If I place 50 grams of baking soda and ____ grams of vinegar in a glass, then after the reaction, there will be 125 grams of products.
75 grams of vinegar
For a mass of 500g, what is its weight?
F=M*g
500g = 0.5kg
0.5kg x 9.8m/sec2 = 4.9 kg*m/sec2 = 4.9N
What are 2 types of pure substance? Give 2 examples of each and write their formulas on the board
Element: N, O, Cu, Pt, Au, etc.
Compound: salt, sugar, vinegar, CO2 etc
Balance the equation:
AgI + N2S -> Ag2S +NI
2AgI + N2S -> Ag2S +2NI
Write on the board the equation(s) for mass calculations.
M=D/V
M=W/g (weight/gravity)
What is the air? Give a detailed answer (as much as possible)
Homogeneous gaseous mixture composed of, N2, CO2, O2, CH4, Ar, He, Ne, etc
Balance the equation:
Mg(OH)2 + HCl -> Mgl2 + H2O
Impossible!
Will an object float/sink/hover if it weighs 19.4N and displaces a volume of water that is equal to 10mL? Show the work.
M = 19.6N : 9.8m/sec2 = 2kg. D = 2kg/10mL = 2000g/10mL = 200g/mL - sinks