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4 years ago

What are the properties of metal that make it a useful material for electricians

Chemistry

1 answer:

igor_vitrenko [27]4 years ago

7 0

It is conductive and can take high temperatures.

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In general, ethers have a much lower boiling point than their isomeric alcohols. why? the carbon-oxygen bond in ethers is nonpol

lana66690 [7]

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4 years ago

If you had excess chlorine, how many moles of aluminum chloride could be produced from 28.0 g of aluminum?

MaRussiya [10]

Answer:

1.04 moles of AlCl₃

Explanation:

Balanced Equation: 2Al°(s) + 3Cl₂(g) => 2AlCl₃(s)

Approach => convert given data (28 g Al°) to moles. The number of moles AlCl₃ would equal the number of moles aluminum because coefficients for Aluminum and Aluminum Chloride are equal.

moles Al° = (28g)/(27g/mole ) = 1.04 mole Al°

From balanced equation moles AlCl₃ produced equals moles of Al° produced = 1.04 mole AlCl₃ because coefficients of Al° & AlCl₃.

5 0

4 years ago

As we saw in section 4.3, nitric acid and hydrochloric acid are strong acids. write net ionic equations for the neutralization o

Kazeer [188]

First you write the "molecular" equation, then the ionic equation, and finally the net ionic equation.

Explanation:

You can read about these equations at

Here are the steps for your reaction.

1. Write the molecular equation

We write the equation as if all the reactants were molecules.

2HNO₃(aq) + Mg(OH)₂(s) → 2H₂O(l) + Mg(NO₃)₂(aq

2. Write the ionic equation

We write all the soluble strong electrolytes as ions. H₂O is a weak electrolyte, so we write it as a molecule. Mg(OH)₂ is insoluble, so we write it as a molecule as well.

2H⁺(aq) + 2NO₃⁻(aq) + Mg(OH)₂(s) → 2H₂O(l) + Mg²⁺(aq) + 2NO₃⁻(aq)

3. Write the net ionic equation

Here, we cancel all species that appear on both sides of the equation. We cancel the NO₃⁻ ions.

The net ionic equation is

2H⁺(aq) + Mg(OH)₂(s) → 2H₂O(l) + Mg²⁺(aq)

6 0

4 years ago

Which of these statements is true?

vichka [17]

<span>All molecules are made up of atoms. N2 O2 and H2 exist in molecule form and not in atomic form.
They exist freely in nature as molecules.
According to above explanation,
</span><span>B. Some elements found in nature exist as molecules, is the correct answer.</span>

3 0

3 years ago

Read 2 more answers

State the colour of a solution of copper sulphate

dybincka [34]

The colour of copper sulphate solution is blue

5 0

3 years ago