Name Open note quiz
February 5, 2021
1. A
is a change in the appearance or form of matter.
It does not change the chemical composition of the matter.
2. A
is a change in matter that produces one or more new
substances
3.
must be added to break bonds.
4. An example of energy is
5. What are two signs that a chemical change has occurred?
6. An ice cube absorbs energy so it is an
reaction
7. A
increases the rate or speeds up a chemical reaction.

Which of the following statements concerning the influence of culture on ethnic identity formation is accurate? a. one will reject ethnic identity if cultural stereotypes are encountered. b. if one’s ethnic city is different from the dominant cultural group, then one’s ethnic identity you will become weekend. c. if an the ethnic group is excepted by dominant culture, then ethnic identity formation can be a difficult process. d. similarity to the dominant culture can determine how easy it is for one to except ethnic differences.

If a simple machine aduces the strength of a force, what must be increased? the speed of the input force the work the simple machine performs the size of the simple machine the distance over which the force is applied

3.09 lab: reaction of metals 1 which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.