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2 years ago

A molecule of antifreeze, ethylene glycol, has the formula c2h4(oh)2. how many atoms are there in one molecule of antifreeze?

Chemistry

2 answers:

Hitman42 [59]2 years ago

8 0

Answer:

the total atoms in one molecule of antifreeze = 2 + 6 + 2 = 10

Explanation:

The number of atoms in the given ethylene glycol molecule can be calculated from its molecular formula.

The molecular formula is : $C_{2}H_{4}(OH)_{2}$

The subscripts represent the multiplicity of the atoms present

Here the subscript on carbon = 2 so there are two carbon atoms

the subscript on hydrogen = 4 and two on OH, so the total hydrogen atoms = 6

The subscript on oxygen =2 so the total oxygen atoms= 2

Hence the total atoms in one molecule of antifreeze = 2 + 6 + 2 = 10

kifflom [539]2 years ago

5 0

Answer is: there are ten atoms in one molecule of antifreeze.
One molecule of ethylene glycol (C₂H₄(OH)₂) has two carbon atoms, six hydrogen atoms (4 + 2 · 1) and two oxygen atoms (2 · 1). So there are:
2 + 6 + 2 = 10 atoms.
Ethylene glycol (C₂H₄(OH)₂) is an odorless, sweet-tasting, colorless viscous liquid.

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Read 2 more answers

Anyway, which is a spectator ion involved in the reaction of k2cro4(aq) and ba(no3)2(aq)?

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Nitrate ions $\text{NO}_3^{-}$ and potassium ions $\text{K}^{+}$ .

<h3>Explanation</h3>

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Start with the balanced chemical equation for this process:

$\text{K}_2\text{CrO}_4 \; (aq) + \text{Ba}(\text{NO}_3)_2 \; (aq) \to \text{Ba}(\text{CrO}_4)_2 \; (s) + 2 \; \text{KNO}_3 \; (aq)$

Rewrite the chemical equation as an ionic one; express all soluble salts- those with state symbol (aq)- as their constituting ions while leaving the insoluble (s) intact.

$2 \; \text{K}^{+}\; (aq)+ 2\; \text{CrO}_4^{-} \; (aq) + \text{Ba}^{2+} \; (aq) + 2 \; \text{NO}_3^{-} \; (aq) \\ \to \text{Ba}(\text{CrO}_4)_2 \; (s) + 2 \; \text{K}^{+} \; (aq) + 2 \; \text{NO}_3^{-} \; (aq)$

$\text{K}^{+}$ and $\text{CrO}_4^{-}$ are found on both sides of the equation by the same quantity. The two ions thus took no part in the net reaction and act as spectator ions.

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2 years ago

Unknown element x has four energy levels, five valence electrons, and is a metalloid. what is elements x?

kykrilka [37]

Answer:

Element X is Arsenic (As)

Explanation:

Elements in the periodic table are either metals, non-metals or metalloids.
Metals are elements that react by losing electrons to obtain a stable configuration and form cation.
Non-metals are those elements that react by gaining electrons to form a stable configuration and form anion.
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Examples of metalloids include Selenium, Arsenic, Boron, etc.
Arsenic is a metalloid in period 4 (four energy levels) with five valence electrons.

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2 years ago

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Answer:

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