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Objective 4 Test

Test Description: Obj 4

Instructions: Answer all questions to get your test result.

1) An element with 6 protons is....

Aboron Boxygen Ccarbon Dphosphorous

2) How many electrons can be found in the 2nd electron cloud?

A8 B4 C2 D6

3) Which of the following bonds shares electrons?

Acovalent Bionic Chydrogen Dpeptide

4) Which of the following is a chemical change?

Awood burning Bpainting a house Cwater freezing Ddissolving sugar in water

5) There is an unknown substance that is a silvery powder with a constant melting point and it cannot be chemically or physically separated into different substances. This unknown substance is most likely a/an

Ametal Belement Cmixture Dcompound

6) Which of the following is an example of turning solar energy into chemical energy?

Agreen plants making food Bhigh winds turning a windmill Curanium releasing heat and creating steam Da battery charging

7) Elements found in group 16 are likely to...

Again electrons Bbecome large molecules Cmelt Dact like metals

8) Which of these produces most of the compounds found in acid rain?

Asolar cells Bwindmills Cfossil fuels Dnuclear fission

9) Water acts as a solvent of ionic compounds because

Awater is a liquid over wide range of temperatures Bwater molecules are polar Cwater takes the shape of the container Dwater is found in 3 states of matter

10) A substance used to clean ovens must be handled with rubber gloves. This substance is also slippery and will turn litmus paper blue. What does this substance likely contain?

Aan isotope Ba base Ca metal Dan acid

*select an answer for all questions

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