For Numbers 4 and 5
"Some materials undergo change of chemical property
zone
when # chemically reacts with another material.
evidence of change is formation of a
For
new product.
example, when a metal is exposed to oxygen and water, rust
is formed. Another change is the formation of gas. 5This is
observed when a chemical is burning. And the third
evidence of change is the release of heat.
Feriasteree
when a metal is soaked in acid, heat is released, thus the
metal starts to wear away. These three are the evidence of
chemical change.
4. What signal words are used to introduce the items listed in the text?
А. For example, this is, and for instance
B. Formation of new product, formation of gas, and release of heat
C. One, another, and third
D. Rusting, burning, and wearing away
5. Which sentences contain the list of evidence of chemical change?
А. 1, 2, and 8
C. 2, 4, and 6
2, 5, and 7
D. 3, 5, and 7​