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Vsevolod [243]
3 years ago
10

While washing his hands before the client consultation with Chloe, Jayden dripped some water onto the countertop. When he came b

ack later to wipe it up, it had evaporated. What happened to the drops of water?
The water underwent a chemical change.
The water underwent a physical change.
The water became an organic substance.
The water became a pure substance.
Chemistry
1 answer:
Alchen [17]3 years ago
6 0

Answer:

the water underwent a physical change. This is because the water simply changed states, and could become liquid again, but it will remain H20 throughout the time

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Elements are organized on the periodic table according to
Alex

Answer:

atomic number

Explanation:

The periodic table is a table that lists all of the chemical elements in order of atomic number, starting with hydrogen and ending with oganesson. The number of protons in the nucleus of an atom of a certain element is its atomic number.

Have a good day :)

5 0
2 years ago
After 1911, most scientists accepted the theory that nucleus of an atom was very dense and very small and has a positive charge.
Yanka [14]
After 1911 most scientists accepted<span> the </span>theory<span> that the </span>nucleus<span> of an </span>atom<span> was </span>very dense<span> and </span>very small<span> and </span>has<span> a </span>positive charge<span>. </span>
8 0
3 years ago
Another name for a renewable energy source
Ira Lisetskai [31]

Answer:

Solar Power, HEP (Hydroelectric Power), Wind Power, etc...

Explanation:

These are some common examples of renewable energy source.

7 0
3 years ago
What is the name for CH 3 CH 2 COCHCH 3 CH(CH 3 ) 2 ?
Paraphin [41]

Answer:

Butanoic acid

Explanation:

The IUPAC name of CH3CH2CH2COOH is:

The IUPAC name for a given compound is Butanoic acid.

4 0
2 years ago
10. Carbon tetrachloride has a density of 1.60 g/mL. What is the volume of 40 grams of CCl4?
ikadub [295]

Answer:

The answer is

<h2>25 mL</h2>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

volume =  \frac{mass}{density}

From the question

mass of CCl4 = 40g

Density = 1.6 g/mL

The volume is

volume =  \frac{40}{1.6}

We have the final answer as

<h3>25 mL</h3>

Hope this helps you

5 0
3 years ago
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