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3 years ago

Which formula contains a metal and a nonmetal? SO2 MgO CO H2O

Chemistry

2 answers:

Lynna [10]3 years ago

7 0

Answer:

$\boxed{MgO}$

Explanation:

Metals are red, nonmetals are blue, and metalloids are yellow in the attached file.

Using this table, you can see that Mg is a metal and O is a nonmetal, which fits the question criteria.

Hope this helps!

eduard3 years ago

3 0

Answer:

MgO

Explanation:

Mg, which is magnesium, is considered a metal, when paired with Oxygen, which is a gas, it creates magnesium oxide, and the formula itself is a pairing of a metal with a nonmetal

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Akimi4 [234]

Answser

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Explanation:

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2 years ago

Draw a schematic of the hydrogen atom with the single proton in the nucleus, and the n=1, n=2, n=3, and n=4 energy level options

max2010maxim [7]

Explanation:

According to Bohr's postulates, the electron in the present in the lower energy level can absorb energy and exits to higher energy level. Also, when this electron returns back to its orbit, it emits some energy.

Since the hydrogen consists of 1 electron and 1 proton. The lowest energy configuration of the hydrogen is when n =1 or, when the electron is present in the K-shell or the ground state.

The possible transition for the electron given in the question is :

n = 2, 3 and 4

The schematic diagram of the hydrogen atom consisting of these four quantum levels in which the electron can jump (Absorption) and comeback to from these energy levels (emission) .

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3 years ago

A solution is made by dissolving

barxatty [35]

Answer:

4.52 mol/kg

Explanation:

Given data:

Mass of lithium fluoride = 22.1 g

Mass of water = 188 g

Molality = ?

Solution:

Molality:

It is the number of moles of solute into kilogram of solvent.

Formula:

Molality = number of moles of solute / kilogram solvent

Mathematical expression:

m = n/kg

Now we will convert the grams of LiF into moles.

Number of moles = mass/ molar mass

Number of moles = 22.1 g/ 26 g/mol

Number of moles = 0.85 mol

Now we will convert the g of water into kg.

Mass of water = 188 g× 1kg/1000 g = 0.188 kg

Now we will put the values in formula.

m = 0.85 mol / 0.188 kg

m = 4.52 mol/kg

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2 years ago

What is the molality of a solution containing 2.6 moles of sugar and 6 kg water?

Pachacha [2.7K]

Convert kg into L, then take the moles and divide it by the L of water

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2 years ago

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miss Akunina [59]

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2 years ago