New substances are produced in a chemical change.
true
false...
Answers: 2
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Which disease is caused by a buildup of plaque in blood ves
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Genetically modified organisms can include icecream. true or false
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Jessica is a friend dislodge a piece of meat from her throat. she delivers five blows on her friend’s back with her fist and then gives him five abdominal thrusts. is jessica doing the procedure correctly? 1 no, she should use the heel of her hand for the blows. 2 no, she should use the side of her hand for the blows. 3 no, she should use her elbows to deliver the blows. 4 no, she should use a tennis ball to deliver the blows.
Answers: 2
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