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Kruka [31]
3 years ago
13

Which of the following is an anion? A. O2– B. Mg2+ C. Al3+ D. H

Chemistry
2 answers:
Alekssandra [29.7K]3 years ago
6 0
An anion is an ion that has gained electrons and because of this it has an overall electrical charge that is negative due to the excess of electrons, which is greater than the atomic number or number of protons for the atom.

A. O2- is the anion.
Alika [10]3 years ago
4 0
An anion is O2- that is option A.
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What do you think would happen if you threw a block of polystyrene (styrofoam™) into the water?.
grandymaker [24]

Answer:

It will float

Explanation:

Polystyrene is not dense and its light and full of air.  It will float.

5 0
3 years ago
Explain all ways your atom and symbol for it would change if you removed 2 electrons from the atom
MissTica

Each atom/element has an electron configuration

The electron configuration shows the energy level of the electron

Each electron configuration has 4 quantum numbers, namely n, l, ml, and ms

  • n = the principal
  • l = the angular momentum / azimuthal
  • ml = the magnetic
  • ms = the electron-spin

We make an example of the element Mg which is in group 2 with the atomic number 12

Electron configuration of Mg: [Ne] 3s² or 1s² 2s² 2p⁶ 3s²

if Mg removes 2 electrons then Mg will form a positive ion (cation) Mg²⁺

This cation is included in the monatomic ion because it is formed from one element (in contrast to the polyatomic ion, which is formed from two or more elements such as SO₄²⁻, ClO₃⁻)

Electron configuration of Mg²⁺ : 1s² 2s² 2p⁶

So atoms can be positively or negatively charged depending on removing or attracting electrons

6 0
4 years ago
What other objects are often arranged by there properties
Trava [24]

Answer:

other than the periodic table, are often arranged by their properties

Explanation:

Money, they are arranged by how big or small they are, like coins, with pennies, dimes, and quarters.

4 0
3 years ago
A sample of lsd (d-lysergic acid diethylamide, c24h30n3o) is added to some table salt (sodium chloride) to form a mixture. given
spin [16.1K]
1) All the CO2 comes from the C24 H30 N3 O

2) To balance C from CO2 with C from C24, the ratio of cC24 H30 N3 O to CO2 is 24 / 1

3) Convert 1.20 g of CO2 to number of moles

number of moles = mass in grams / molar mass

mass = 1.20 g

molar mass = 12.01 g/mol + 32.00 g/mol = 44.01 g/mol

number of moles = 1.2 g / 44.01 g/mol = 0.0273 mol

4) proportion

1 mol C24 H30 N3 O / 24 mol CO2 = x / 0.0273 mol CO2

=> x = 0.0273 mol CO2 * 1 mol C24H30N3O / 24 mol CO2 = 0.00114 mol C24H30N3O

5) Convert 0.00114 mol C24H30N3O to grams

molar mass = 376.5 g/mol

mass = 0.00114 mol * 376.5 g/mol = 0.429 g

6) mass percent in the mixture

mass percent = (mass of lsd / mass of mixture) * 100 = (0.429g / 1.0g) * 100 = 42.9%

Answer: 42.9%


6 0
3 years ago
How many hydrogen (H) atoms are in one molecule of sulfuric acid, H2SO4?
OleMash [197]
There are 2 hydrogen atoms

8 0
3 years ago
Read 2 more answers
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