CHAPTER 1 & 3 REVIEW

Chemistry 312

Weight or Mass

Which of the following measurements would be affected by altitude?

Which of the following would not be considered matter:

A. atoms B. heat C. alloysD. pudding

After extensive experimentation what end result of the scientific method offers an explanation of what occurs in nature.

A Law or a Theory

Which of the following properties couldn’t you describe quantitatively:TemperatureTime PressureColor

What type of matter does jello represent:

a. elementb. compoundc. heterogeneous mixtured. homogeneous mixture

What type of matter does Copper I chloride (CuCl) represent:

a. elementb. compoundc. heterogeneous mixtured. homogeneous mixture

What type of matter does this granite represent:

a. elementb. compoundc. heterogeneous mixtured. homogeneous mixture

Read the following:

Smithers thinks that a special juice will increase the productivity of workers. He creates two groups of 50 workers each and assigns each group the same task (in this case, they're supposed to staple a set of papers). Group A is given the special juice to drink while they work. Group B is not given the special juice. After an hour, Smithers counts how many stacks of papers each group has made. Group A made 1,587 stacks, Group B made 2,113 stacks.

What is the dependent variable:Number of stacks of paper

Felix designs an experiment to see if lady bugs from North America have more spots than lady bugs from south America.

Is this an example of pure or applied research?

What is the relationship between the two variables?

Direct or Indirect

Oskar went into the grocery store in June (2011) and saw a shelf piled high with boxes of candy canes that are on sale. Oskar thinks that this is strange and assumes that they are left over from last winter. He grabs one of the boxes and examines it for a sell by date. The date on the box is 11/2011.

What is Oskar’s Hypothesis?The candy canes are left over from last year and outdated

The observation of this property of matter is always accompanied by a change in the composition of matter?

Physical or Chemical

What type of change is represented by the freezing of water to form ice?

Physical or Chemical

Which state of matter has an indefinite volume and is easy to compress? Solid, Liquid or Gas

Which of the following is not a physical property?

Temperature Ability to dissolveColorAbility to rust

Which of the following is an extensive property of matter?

Attraction to a magnetTemperatureVolumeDensity

Which of the following types of matter can be separated by physical change?

ElementsCompoundsMixtures

A solution is another name for:

elementcompoundhomogeneous mixtureheterogeneous mixture

What type of matter is oxygen (O2)?

elementcompoundhomogeneous mixtureheterogeneous mixture

What separtation technique would be used to separate a heterogeneous mixture containing a solid and a liquid?

distillationchromatographyfiltration crystallization

What separtation technique would be used to separate a homogeneous mixture containing a solid and a liquid?

distillationchromatographyfiltrationcrystallization

What technique uses the physical property of boiling point to separate components of a mixture?

distillationchromatographyfiltrationcrystallization

What type of reaction is associated with the absorption of energy?

Exothermic or Endothermic

According to the Law of Conservation of Mass, what must the mass of CO2 be in the following equation?

C6H12O6 + 6O2 6CO2 + 6H2O54g + 98g = _99g_ + 53g

Which of the following is not an indication of a chemical change?

formation of a gaschange in colorformation of a precipitatemelting