Pre-test General Chemistry 1
Quiz by ANATALIA P. VIOLETA
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- Q1
An organized ways of solving problems and it involves atleast 6 steps is?
Scientific Method
Law
Theory
Hyphothesis
30s - Q2
Which of the following s a mixture?
Methanol
7 -up
Silica
Ethanol
30s - Q3
Which of these cannot be separated into two or more substances by physical means alone?
Whiskey
Cow's Milk
Kerosene
Table Salt
30s - Q4
An example of a chemical property is
Reactivity
Taste
Odor
Color
30s - Q5
What element is requried for synthesis of hemoglobin?
Iodine
Copper
Calcium
Chronium
30s - Q6
Which of these can be separated into two or more elements only by a chemical process?
Gold
Nitrogen
Pure Water
Hydrogen
30s - Q7
If the temperature of an object is 0 kelbin, on temperature in celcious scale is
212
32
100
273
30s - Q8
Which of the following contains a single type of atom?
Baking Soda
Aluminum
Carbon Disulfide
Ether
30s - Q9
Which statement describe a chemical change?
Reactivity
Flammability
solubility
Iron wool burns in air when it is placed in a flame
30s - Q10
Which of the following is a compound?
Sugar
Air
Seawater
Chocolate
30s - Q11
How many significant figures are in the number 0.0234?
6
4
7
3
30s - Q12
It is defined as capacity for doing work is called
Energy
Pressure
Friction
Force
30s - Q13
It is the energyextracted and electricity generation from natural steam or hot water refer to
Coal
Geothermal
Seawater
Natural gas
30s - Q14
Law of conservation of mass states that in an ordinary chemical reactions, the mass of the reactants equals the mass of the products.
John Dalton
Antoine Lavoisier
Dmitri Mendeleev
Berthollet & Proust
30s - Q15
One kind of matter reacts with other kind of of matter is
Chemical change
Chemical property
Physical property
30s