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GuDViN [60]
2 years ago
15

Jennifer and Cody are mixing substances during a lab experiment. They observe the four effects listed below. Which of these effe

cts indicates that a chemical reaction has taken place between two substances?
A pink powdered substance turns water pink when they are mixed together.

A piece of shiny metal begins to bubble when placed in a clear liquid.

A white solid disappears when mixed with water.

A clear, lemon-scented liquid continues to smell like lemon when it is mixed with water.
Chemistry
1 answer:
mr_godi [17]2 years ago
4 0

Answer:

number 2

Explanation:

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How do scientists believe that chloroplasts got into photosynthetic cells? ​
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3 0
1 year ago
Can some one please help me with this organic chemistry question?
const2013 [10]
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4 0
3 years ago
How many molecules are present in 265 moles of CCl
Solnce55 [7]

Answer:

Option C. 1.60x10^26 molecules

Explanation:

Avogadro's hypothesis proved that that 1 mole of any substance contains 6.02x10^23 molecules.

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If 1 mole of CCl4 contains 6.02x10^23 molecules,

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From the calculation made above, 265 moles of CCl4 contains 1.60x10^26 molecules.

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