Around 7
The pH of a chalk and vinegar mixture will depend on the quantities of each substance used. Chalk, also known as calcium carbonate, is a base, while vinegar is an acid. Mixing the two will neutralize each other to some extent, resulting in a pH closer to neutral (around pH 7).
It is an acid acidic substance similair to that of citric acid found in lemons
coke is pretty acidic, it is around pH 3.2 and since chalk is a carbonate, it undergoes the a classic acid base reaction similar to the vinegar + baking soda reaction. so it would appear to an observer like it is dissolving fasterbut i think if this is a homework question your teacher has asked a flawed question becase the chalk does not dissolve it reacts which is two different things (chemical change vs physical change)also you have to keep in mind the fact that coke is a pretty saturated solution as it has ~40g of glucose/fructose and this can affect solubility
Chalk is sometimes added to soil to raise the pH of acidic soils. Calcium, the primary component of chalk, is also an important secondary nutrient for healthy crop growth.
Chalk dissolving is important in processes like weathering and erosion, where it contributes to the breakdown of rocks, soil, and other materials over time. It also plays a role in the carbon cycle, as the dissolution of chalk releases carbon dioxide back into the atmosphere. Additionally, chalk dissolution can impact water quality by affecting the pH and mineral content of water.
chalk
colored chalk sidewalk chalk dustless chalk
Some compound words with "chalk" are chalkboard, chalk dust, chalk line, chalk stick.
A collective noun for chalk is a box of chalk.
your an idiot, no a whitle chalk is not longer than aq blue chalk
The word 'chalk' is a neuter noun, a word for a thing that has no gender.
Add chalk (Calcium carbonate) if it is an acid the chalk will 'fizz' as it reacts and it will give off carbon dioxide gas. Or just use a universal indicator solution or test with litmus paper.