Which two substances would react together in a combustion reaction?

Answer 1

Hydrochloric Acid (HCl) with magnesium (Mg): The magnesium dissolves into the acid. The magnesium creates hydrogen bubbles (H2). When it's dissolved it makes magnesium ions with a +2 charge (Mg2+). It turns into a white liquid with bubbles. Hydrochloric acid and chalk: The Hydrochloric acid reacts with the calcite so it forms carbon dioxide bubbles. The acid reacts to the chalk because of the limestone in it. The way to reduce it is to add diluted acid to it until u start adding water Hydrochloric and calcium: When the acid and calcium mix together it creates a mix of salt, water and carbon dioxide. There is a change of pH, temperature and colour. Vinegar and Baking soda: Vinegar and baking soda react because vinegar has a lot of acetic acid while the soda is a sodium bicarbonate. When they meet it causes a faint gas of carbon dioxide. The Carbonic acid quickly breaks into water and carbon dioxide.

Answer 2

There are different types of chemical that can react together. These include, reaction between a base and ÊanÊacid, reaction between Êa metal oxide and an acid and displacement reactions between different chemicals with different activityÊseries.Ê

Answer 3

One example of substances that can react in a combustion reaction is methane (CH4) and oxygen (O2). When ignited, methane reacts with oxygen to produce carbon dioxide (CO2) and water (H2O) as the products.

Answer 4

1. NaCl + H2O= a white color salt+ water= color change 2. Ca(OH)2 + O= A pale color Limewater+ oxegen= color change

Answer 5

you can not make water by mixing chemicals. You can extract it from the air.

Answer 6

These substances are a combusible material and oxygen.

Answer 7

Normally combustion refers to the reaction of a fuel with oxygen.

Answer 8

heptane and oxygen