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statuscvo [17]
3 years ago
5

What is an example of a polyatomic ion

Chemistry
2 answers:
frez [133]3 years ago
8 0

Answer:

OH - and PO 4 3- are both polyatomic ions

Pie3 years ago
5 0

Answer: The hydroxide cation (OH -) and the phosphate cation (PO 4 3-) are both polyatomic ions.

Explanation:

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If we react 30 grams of ethane (C2H6 ) with 320 grams of oxygen, how many grams of carbon dioxide would we make
V125BC [204]

The mass of carbon dioxide that would be made by reacting 30 grams C2H6 with 320 grams O2 will be 80 grams

From the balanced equation of the reaction:

2C_2H_6+7O_2---4CO_2+6H_2O

The mole ratio of C2H6 to O2 is 2:7.

  • Mole of 30 grams C2H6 = mass/molar mass

                                        = 30/30

                                       = 1 mole

  • Mole of 320 grams O2 = 320/32

                                       = 10 moles

Thus, C2H6 is the limiting reactant.

Mole ratio of C2H6 to CO2 according to the equation = 1:2

Since the mole of C2H6 is 1, the equivalent mole of CO2 would, therefore, be 2.

Mass of 2 moles CO2 = mole x molar mass

                                    = 2 x 44

                                      = 88 grams

More on stoichiometric calculations can be found here: brainly.com/question/8062886?referrer=searchResults

6 0
3 years ago
Which is the electron configuration for zinc?
alisha [4.7K]

[AR] 3d10 4s2 is the configuration for zinc

3 0
3 years ago
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3. A thin lead apron is used to protect patients from harmful X rays. If the sheet measures 75.0 cm by 55.0 cm by 0.10 cm, and t
DanielleElmas [232]

Answer:

4.67 kg

Explanation:

Given data

  • Dimensions of the lead sheet: 75.0 cm by 55.0 cm by 0.10 cm
  • Density of lead: 11.3 g/cm³

Step 1: Calculate the volume of the sheet

The volume of the sheet is equal to the product of its dimensions.

V = 75.0 cm \times  55.0 cm \times 0.10 cm = 413 cm^{3}

Step 2: Calculate the mass of the sheet

The density (ρ) is equal to the mass divided by the volume.

\rho = \frac{m}{V} \\m = \rho \times V = \frac{11.3g}{cm^{3} }  \times 413cm^{3} = 4.67 \times 10^{3} g = 4.67 kg

6 0
3 years ago
10 In a bond between an atom of carbon and an atom of fluorine, the fluorine atom has a
Oksanka [162]
The best answer is (2) <span>stronger attraction for electrons, for the fluorine atom has a higher electronegativity than the carbon one, if not highest of all nonmetals.
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4 0
3 years ago
What is the word equation for molecules of magnesium reacting with molecules of oxygen to produce molecules of magnesium oxide?
MrRissso [65]

Answer:

magnesium + oxygen Right arrow magnesium oxide

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2 years ago
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