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Chemistry
GCSE

What is a Bronsted-Lowry acid?

A Bronsted-Lowry acid is a proton donor. This means that a hydrogen atom in the molecule can dissociate in aqueous solution to form a H+ ion, and leaving a negatively charged anion.

Answered by Abigael B. Chemistry tutor
1233 Views

How do covalent bonds work?

Firstly, let's define a covalent bond as being a shared pair of electrons, between two positively charged nuclei, with one being donated from each ion/atom. Let's note that an electron has a negative char...

Answered by Jack W. Chemistry tutor
1516 Views

Ammonia is made from nitrogen and hydrogen in a reversible reaction. Write a balanced symbol equation for this reaction, name the reaction and give one use for ammonia.

N2 + 3H2 ⇌ 2NH3 The Haber process, and ammonia is used in the production of many synthetic fertilizers.

Answered by Henry H. Chemistry tutor
2975 Views

How many covalent bonds do nitrogen atoms make and why?

Nitrogen makes 3 covalent bonds. It is in the second period of the periodic table and so has its outer electron in the second shell/energy level. This shell requires eight electrons in order to be filled....

Answered by Ronan t. Chemistry tutor
12692 Views

An atom of iron is represented as 56 Fe 26 Give the number of protons, neutrons and electrons in this atom of iron.

We see two numbers given for the description of an atom on the periodic, one larger than the other. The larger number is in reference to the atomic mass of the atom, which is the sum of the number of prot...

Answered by Jonas M. Chemistry tutor
7368 Views

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