Chemical Changes
Quiz by Heather Brothers
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20 questions
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- Q1A __________ change always involves the formation of a new substancephysicalchemical30s
- Q2Vinegar reacts with baking soda and bubbles form. What evidence would there be for a chemical change?A gas is formedThere is a colour changeA solid substance (a precipitate) is formed when two clear solutions are mixed.There is a change in energy (temperature increase or decrease, light produced, electrical energy produced)30s
- Q3An apple was sitting on the table (half eaten) and after awhile it started to rot. What evidence would there be for a chemical change?A gas is formedThere is a colour changeA solid substance (a precipitate) is formed when two clear solutions are mixed.There is a change in energy (temperature increase or decrease, light produced, electrical energy produced)30s
- Q4An athlete was injured and so a coach brought over a one time use ice pack. The coach bent the pack to mix the chemicals inside the ice pack and it instantly turned cold. What evidence would there be for a chemical change?There is a change in energy (temperature increase or decrease, light produced, electrical energy produced)There is a colour changeA gas is formedA solid substance (a precipitate) is formed when two clear solutions are mixed.30s
- Q5Two clear liquid chemicals were mixed together and yellow solid particles immediately formed. What evidence would there be for a chemical change?A solid substance (a precipitate) is formed when two clear solutions are mixed.There is a change in energy (temperature increase or decrease, light produced, electrical energy produced)A gas is formed30s
- Q6A neon green glow stick is cracked to mix the chemicals inside and to make it work. What evidence would there be for a chemical change?There is a change in energy (temperature increase or decrease, light produced, electrical energy produced)There is a colour changeA gas is formedA solid substance (a precipitate) is formed when two clear solutions are mixed.30s
- Q7Someone farted in class (silent but deadly). What evidence would there be for a chemical change?There is a colour changeA solid substance (a precipitate) is formed when two clear solutions are mixed.There is a change in energy (temperature increase or decrease, light produced, electrical energy produced)A gas is formed (bubbles in a liquid, or odour - smell)30s
- Q8You place new batteries in your device to make it work. What evidence would there be for a chemical change?There is a colour changeThere is a change in energy (temperature increase or decrease, light produced, electrical energy produced)A gas is formed (bubbles in a liquid, or odour - smell)A solid substance (a precipitate) is formed when two clear solutions are mixed.30s
- Q9On the periodic table the metals are located on the ________ side of the (staircase - zig zag) line.leftright30s
- Q10On the periodic table the nonmetals are located on the ________ side of the (staircase - zig zag) line.leftright30s
- Q11The atomic number is _________36.94130s
- Q12The atomic mass is __________39.09831930s
- Q13The group on the periodic table that is not reactive is called the ___________HalogensAlkali metalsNobel gasesAlkaline Earth Metals30s
- Q14The group of metals on the periodic table that is most reactive is called the ___________HalogensAlkali metalsTransition MetalsAlkaline Earth Metals30s
- Q15The group of nonmetals on the periodic table that is most reactive is called the ___________LanthanidesActinidesNobel gasesHalogens30s
