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liq [111]
2 years ago
6

Why are gas bubbles not always a sign of a chemical change?

Chemistry
1 answer:
Mekhanik [1.2K]2 years ago
3 0

Answer: its a reaction

Explanation:

like coke its a reaction between gas and oxygen

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Which of the following actions does not require power
Kitty [74]

Answer:

Eating an apple

Explanation:

No electricity

4 0
3 years ago
One tank of gold fish is fed the normal amount of food once a day. A second tank is fed twice a day. A third tank is fed four ti
Arturiano [62]

The question is incomplete, the complete question is;

One tank of goldfish is feed the normal amount which is once a day, a second tank is fed twice a day, and a third tank is fed four times a day during a 6 week study. The fishes' body fat is recorded daily.

Independent Variable-

Dependent Variable-

Constants

Control Group-

Answer:

A) The amount of food the gold fish receives

B) Body fat of the gold fish

C) -Type of fish used in the study (gold fish)

Time period within which the fishes were fed (Six week period)

Shape and size of tank

D) group of gold fish fed the normal amount

Explanation:

The purpose of the study is to determined the impact of amount of feed on the body fat of gold fish. Hence, the amount of feed is the independent variable while the body fat of the feed is the dependent variable.

The control group receives the normal amount of feed (once a day). The fishes are all gold fish, fed within a six week period. All the tanks were of the same shape and size. These are the constants in the study.

4 0
3 years ago
What is the molar mass of CH4 (C=12.011 amu H = 1.008 amu)
never [62]

Answer:

16.05 amu

Explanation:

12.011 rounds to about 12.01 and 1.008 rounds to about 1.01 so when adding you'd do [12.01 + (1.01×4)]= 16.05

6 0
3 years ago
Myra wants to measure the pH of a sample of drinking water as accurately as possible. What method should she use?
zhenek [66]
Use a strip of paper covered in PH indicating dye.
7 0
2 years ago
Most of the elements of which region of the periodic table are located directly to the right of the metalloids?
scZoUnD [109]

Answer:

im sorry for being mean goodbye im get the real answer

Explanation:

7 0
3 years ago
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