Which of these are part of the Scientific Method? A) Observation B) Theory C) Ex
ID: 780415 • Letter: W
Question
Which of these are part of the Scientific Method?
A) Observation
B) Theory
C) Experiment
D) Hypothesis
E) Law
2. Scientific Method 2
Classify the following as an observation or a law: Chlorine and Sodium readily combine in a chemical reaction that emits much heat and light.
A) Observation
B) Law
3. Scientific Method 3
Classify the following statement as a law or a theory. Gases are composed of particles in constant motion.
A) Law
B) Theory
Correct answer(s): B
4. Classification of Matter
To the best of your knowledge, classify each of the following as an element, compound, or a mixture.
A. silver coin
B. air
C. pure water
element
compound
mixture
5. States of Matter
Match each States of Matter term with three terms.
A. compressible, variable shape, variable volume
B. incompressible, fixed volume, variable shape
C. incompressible, fixed volume, fixed shape
Solid
Liquid
Gas
6. The Properties of Matter 1
Classify the following change as physical or chemical: the flammability of alcohol
A) Physical Change
B) Chemical Change
7. The Properties of Matter 2
Classify the following change as Physical or Chemical. The Freezing of Water
A) Physical Change
B) Chemical Change
8. The Development of the Atomic Theory
Determine if the following set of data on a chemical reaction is consistent or inconsistent with the law of conservation of mass and therefore erroneous:8 grams of natural gas react with 38 grams of oxygen gas to form 17 grams of carbon dioxide and 19 grams of water.
A) Consistent with the Law of Conservation of Mass
B) Inconsistent with the Law of Conservation of Mass
9. The Nuclear Theory of the Atom
According to Rutherford's model of the atom, how many electrons would be found in the following atom: Sodium, which has 11 protons in its nucleus
A) 0
B) 1
C) 11
D) 22
10. The Nuclear Theory of the Atom 2
According to Rutherford's model of the atom, how many electrons would be found in the following atom? Sulfur, which has 16 protons in its nucleus.
A) 1
B) 8
C) 16
D) Can not tell from the information given
A. silver coin
B. air
C. pure water
Explanation / Answer
D)Hypothsesis
A)Observation
b)theory
element,mixture and compound respectively
gas,liquid and solid respectively
b)chemical change
A) Consistent with the Law of Conservation of Mass
C) 11
c)16
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