sulphuric acid + sliver =
hydrochloric acid + calcium =
not sure on how to do these
To know the products of a chemical reaction, we can use a concept called chemical equations. Chemical equations show the reactants (substances that react) on the left side of the equation and the products (substances formed) on the right side. In order to predict the products, we need to understand some basic rules:
1. Chemical formulas: Each substance in a chemical equation is represented by its chemical formula. For example, sulphuric acid is represented by H2SO4, hydrochloric acid is represented by HCl, silver is represented by Ag, and calcium is represented by Ca.
2. Reactivity series: Some elements have a tendency to displace others in a chemical reaction. This is known as the reactivity series. The higher an element is in the series, the more reactive it is. For example, silver is less reactive than hydrogen, while calcium is more reactive than hydrogen.
Now, let's determine the products of the given reactions:
1. Sulphuric acid + silver:
Based on the reactivity series, silver is less reactive than hydrogen. Therefore, it cannot displace hydrogen from sulphuric acid. Hence, the products of this reaction are silver sulfate (Ag2SO4) and hydrogen gas (H2). The balanced chemical equation is:
H2SO4 + 2Ag → Ag2SO4 + H2
2. Hydrochloric acid + calcium:
Based on the reactivity series, calcium is more reactive than hydrogen. Therefore, it can displace hydrogen from hydrochloric acid. Hence, the products of this reaction are calcium chloride (CaCl2) and hydrogen gas (H2). The balanced chemical equation is:
HCl + Ca → CaCl2 + H2
Remember, when balancing a chemical equation, we adjust the number of atoms on both sides by using coefficients. This ensures that the number of atoms is conserved during a chemical reaction.