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Pie
3 years ago
8

What is formed when oxygen and hydrogen unite chemically

Chemistry
1 answer:
gavmur [86]3 years ago
6 0
A. An element is the answer
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If the mass of a box is 140 g, and the volume is 8 cm3, then the density of the box = ? socratic.org
Ksivusya [100]

Answer:

17.5 g/cm³

Explanation:

We can solve this particular problem by keeping in mind the <em>definition of density</em>:

  • Density = mass / volume

As the problem gives us both <em>the mass and the volume</em> of the box, we can now proceed to <u>calculate the density</u>:

  • Density = 140 g / 8 cm³
  • Density = 17.5 g/cm³

The density of the box is 17.5 g/cm³.

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2 years ago
Which statement correctly describes the location and charge of the neutrons in an atom?
rodikova [14]

Answer:

o

Explanation:

6 0
3 years ago
In which state of the following compounds does nitrogen have the most positive oxidation state? group of answer choices no2 nano
Amiraneli [1.4K]

The compound nitrogen have most positive oxidation state is NO₂. The correct option is b.

<h3>What is oxidation state?</h3>

The total number of electrons gained or lost by an atom in order to form a chemical bond with another atom.

The charge on an ion is equal to the sum of the oxidation states of all the atoms in the ion. A substance's more electronegative elements are given a negative oxidation state.

A positive oxidation state is assigned to the less electronegative element.

Thus, the correct option is b, NO₂.

Learn more about oxidation state

brainly.com/question/11313964

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4 0
2 years ago
Please Help Me with this
Zina [86]

Answer:

compared to sodium, silicon has a higher ionization energy meaning it takes more energy to remove electrons.

Explanation:

hope this helps

<u>can u please give me and Brainlist</u>

5 0
2 years ago
Round off each number to the indicated number of significant figures (sf)
weeeeeb [17]

Answer:

The answer is B

Explanation:

3 0
3 years ago
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