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Darya [45]
3 years ago
10

When two atoms combine by sharing electrons, it is a(n) _____ bond. ionic covalent

Chemistry
2 answers:
NNADVOKAT [17]3 years ago
6 0

Answer: covalent

Explanation:

A covalent bond is formed when an element shares its valence electron with another element. This bond is formed between two non metals.

For example: BrF_3

An ionic bond is formed when an element completely transfers its valence electron to another element. The element which donates the electron is known as electropositive element and the element which accepts the electrons is known as electronegative element. This bond is formed between a metal and an non-metal.

For Example: NaCl

SCORPION-xisa [38]3 years ago
4 0
Covalent bond is the sharing of electrons between two or more atoms.
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Answer:

Solid -> Gas

Explanation:

Sublimation is when a solid directly transitions to a gas, skipping the liquid form.

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3 years ago
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Sonja [21]

Answer:

The compound is N2O4

Explanation:

We have certain important pieces of information about the compound;

1) it is an oxide (a binary compound of nitrogen and oxygen)

2) there are no N-N bonds present

3) there are no O-O bonds present

Since it contains only nitrogen and oxygen then nitrogen accounts for 25.9% of the molecule by mass then oxygen should account for (100-25.9) = 74.1% oxygen

Relative atomic mass of oxygen = 16

Relative atomic mass of nitrogen = 14

We now deduce the empirical formula

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1.85/1.85. 4.6/1.85 (divide through by the lowest ratio)

1 2

Empirical formula is NO2

To find the molecular formula

(NO2)n = 108

(14+2(16))n= 108

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n= 108/46

n= 2

Therefore molecular formula= N2O4

4 0
3 years ago
Give the number of significant figures 0.025
grandymaker [24]
There are 2 significant figures.
"Rule 3: Trailing zeros are significant if a decimal point is shown in the number, but may or may not be significant if no decimal point is shown."
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water is 11.19% hydrogen and 88.1% oxygen by mass. Lake superior contains about 1.2x10 kg of water. what mass of hydrogen is con
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Answer:

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check if question is correct or not

Explanation:

3 0
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Answer:

D

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total mass should be equal on both sides

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