Question

Burning wood is a chemical reaction that:
A. decreases heat
B. releases heat
C. reaches a dewpoint
D. releases differential cooling

Answer 1

b

Answer 2

u think u can help wit 4 more

Answer 3

yes

Answer 4

When iron and oxygen combine to form rust, what is/are the reactants?
A. Iron
B. Oxygen
C. Iron and oxygen
D. Rust

Answer 5

c

Answer 6

During a(n) __________, one or more substances change into new substances.
A. ionic bond
B. physical change
C. chemical reaction
D. covalent bond

Answer 7

c

Answer 8

The starting substances in a chemical reaction are called _____
A. catalysts.
B. products.
C. ions.
D. reactants.

Answer 9

d

Answer 10

no is a

Answer 11

last one

Answer 12

no i looked it up and it said reactants

Answer 13

It's D

Answer 14

The new substances formed in a chemical reaction are called _______
A. reactants.
B. products.
C. chemicals.
D. solutions.

Answer 15

In a chemical reaction, two or more substances called reactants react, resulting in substances called products.

Answer 16

B

Answer 17

is c

Answer 18

its b

Answer 19

thx

Answer 20

np