Please solve this problem. IT IS TOO URGENT ‍♂️

1. Sulphuric acid

2. Car battery acid

3. Washing up liquid

4. Milk of magnesia

5. Metal polish

6. Oven cleaner

Explanation:

Universal paper can determine the pH of a solution. It ranges from dark red (pH 0 - very acidic) to orange/yellow, to green (pH 7 - neutral) to blue, dark blue and purple (pH 14 - very alkaline)

Sulphuric acid has the lowest pH as the universal indicator is red.

The next is car battery acid which is pink - not as acidic as red.

The next is washing up liquid, which is yellow, around pH 3 or 4.

The next is milk of magnesia with light blue, around pH 9 or 10.

Metal polish is dark blue - around pH 11.

Oven cleaner is the darkest, with purple.

your answer would be a. 12.5 kg

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.