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Alex Ar [27]
3 years ago
9

5. Base your answer to the question on the particle diagrams

Chemistry
1 answer:
Luden [163]3 years ago
7 0

Answer:sample 3

Explanation:because if only have one kind of substance which makes it pure

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2KClO3 —> 2KCl2+ 3O2
garik1379 [7]

Answer:

False. The balanced equation should be

2KClO3-->2KCl + 3O2

it is a decomposition reaction.

3 0
3 years ago
How does the periodic table help us to predict unknown elements?
Ksju [112]

The periodic table is a systematic arrangement of the elements. They are arranged according to their atomic number, the number of protons (which in the case of atoms is also the number of electrons) of each atom.

3 0
3 years ago
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Which of the following is an example of how an animal can help a plant reproduce?
rodikova [14]

Answer:

Yes B is correct because when the bees pollinated a plant, it's helping that plant to reproduce.

3 0
3 years ago
How many atoms of hydrogen exist in Na + H2O → NaOH + H2
Kazeer [188]
If you're talking about in an actual sample, you'd need more data like how many moles you have of the reactant or product.

Just in terms of the equation : there are two from the water in the reactant (left) side, and one from the sodium hydroxide and two for the hydrogen gas on the product (right) side, so 2+1+2=5 atoms of hydrogen.
8 0
4 years ago
The area of a telescope lens is 6507 x 10^3 mm^2. What is the area in square feet, enter your answer in scientific notation. If
scoray [572]

Answer:  the area of the telescope lens is \textit{0,08507 ft}

Explanation: Happy I could help!

8 0
3 years ago
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