Whenever elements combine to form a compound, a chemical reaction takes place. A chemical reaction is a change in which one or more chemical elements or compounds (the reactants) form new compounds

1. Using the prompts below, ask questions
a. What / chemical reaction / be?
b. When / a chemical reaction / take place?
c. What / reactants / be?
d. What / the products / be?
e. What / redox reactions / be?
f. Which / the reducing agent / be?
g. Which / the oxidizing agent / be?
h. What / in acid-base reactions / happen?
i. What / photosynthesis / be?
j. What / the rate of a reaction / be affected by?
k. What / activation energy / be?
l. How / catalysts and inhibitors / affect reaction rates?
2. Answer the questions TRUE or FALSE
a. Atoms aren’t lost or made in chemical reactions. 15

b. Atoms join together to make compounds.

c. Atoms make up everything in the universe.
d. The periodic table puts elements with similar properties together.

ACTIVE VOCABULARY English	Uzbek	Russian
Photosynthesis	Fotosintez	Фотосинтез
Oxidation	Oksidlanish	Окисление
Reduction	Kamaytirish	Снижение
Energy	Energiya	Энергия
Catalyst	Katalizator	Катализатор
Classified	Malakali	Квалифицированный
Inhibitors	Ingibitorlar	Ингибиторы
Reaction	Reaktsiya	Реакция
Speed	Tezlik	Скорость
Litmus paper	Lakmus qog'ozi	Лакмусовая бумага
Important	Muhim	Важный
Soap	Sovun	Мыло
Solar energy	Quyosh energiyasi	Солнечная энергия
Specific	Maxsus	Специфический
Acetic acid	Sirka kislotasi	Уксусная кислота