Skip to content / Đến nội dung
SachHeCam.com

Cambridge Secondary (7-9). Stage 8. MCE Science. Student Book - Unit 7: Exothermic and Endothermic Changes - Question 67

Cambridge Secondary (7-9) · Unit 7: Exothermic and Endothermic Changes

Question 67

Tick (✓) the two false sentences about chemical reactions. Then correct them.

a. A chemical reaction in which energy is released to the surroundings is exothermic.
b. In chemical reactions, products are changed to produce new substances called reactants.
c. Dissolving is not a chemical reaction.
d. A reaction that requires energy is endothermic.
e. Aerobic respiration is a chemical reaction that takes in energy.
0
0
GIỎ HÀNG
Empty CartGIỎ CHƯA CÓ GÌQUAY LẠI SHOP