All categories

3 years ago

Change the following word equation into balanced formula equation

Chemistry

1 answer:

Natali [406]3 years ago

6 0

Answer:

Fe + CuO ----> FeO+ Cu

Explanation:

A word equation is a chemical equation in which the reactants and products are represented by words rather than the respective symbols of the species involved in the reaction.

Generally, when writing a balanced reaction equation, it is normal to ensure that the number of atoms of each element on the reactant side is the same as the number of atoms of the same element on the product side. This has been ensured in the reaction above.

The reaction above is possible because iron is higher than copper in the electrochemical series hence iron can displace copper from its compounds.

You might be interested in

e-lub [12.9K]

Answer:

Alpha decay forms new element with two fewer protons and two fewer neutrons; Beta decay forms new element with one more proton and one fewer neutron.

Explanation:

6 0

3 years ago

I really need to know Which of the following is a moral issue?

uysha [10]

Answer:

Explanation:

4 0

4 years ago

Read 2 more answers

Why is carbon is considered tetravalent?

Pepsi [2]

Carbon has four valence electrons. Meaning, it has 4 electrons in it's last shell. These 4 electrons will form a covalent bond with other elements to get the full set of 8 electrons needed for it to be stable. That is why it's considered as tetravalent.

6 0

3 years ago

Is the following chemical equation balanced?

FrozenT [24]

Answer:

Explanation:

The given equation is not balanced

Chemical equation:

KClO₄ → KCl + O₂

Given Balanced chemical equation:

KClO₄ → 2KCl + 2O₂

Correctly balanced chemical equation:

2KClO₄ → 2KCl + 4O₂

Now this equation is correctly balanced.

There are two potassium atom two chlorine atoms and eight oxygen atoms on both side of equation. So this is correctly balanced.

Coefficient with reactant and product:

KClO₄ 2

KCl 2

O₂ 4

5 0

4 years ago

You have a 0.8 L of a 0.5 M HCl solution. How many moles of HCl does this solution contain?

lions [1.4K]

Answer:

$\boxed {\boxed {\sf 0.4 \ mol \ HCl}}$

Explanation:

Molarity is concentration measured in moles per liters. It is the number of moles of solute per liters of solution. The formula is:

$molarity= \frac{moles \ of \ solute}{liters \ of \ solution}}$

We know the solution of HCl has a molarity of 0.5 molar and there are 0.8 liters of solution.

1 molar (M) is equal to 1 mole per liter.
Let's convert the molarity of 0.5 M HCl to 0.5 mol HCl per liter. This will make unit cancellation easier.

The moles of solute or HCl are unknown, so we can use x. Now, we can substitute all known values into the formula.

$0.5 \ mol \ HCl /L = \frac {x}{0.8 \ L}$

Since we are solving for the moles of solute (x), we must isolate the variable. It is being divided by 0.8 liters. The inverse of division is multiplication, so we multiply both sides by 0.8 L.

$0.8 \ L *0.5 \ mol \ HCl /L = \frac {x}{0.8 \ L} *0.8 \ L$

$0.8 \ L *0.5 \ mol \ HCl /L=x$

The units of liters (L) cancel.

$0.8 * 0.5 \ mol \ HCl= x$

$0.4 \ mol \ HCl=x$

This solution contains <u>0.4 moles of HCl.</u>

6 0

3 years ago