litmus paper.
How do you determine whether to use present or past tense? Your scores will determine the winner.
The lump on your dog's eyelid could be a variety of things, such as a cyst or a tumor. It is important to have a veterinarian examine it to determine the cause and whether it is a concern.
In a set volume of any substance increasing the density increases its mass
Because acid can poison you! You could die!!!!!!!!! There are harmful chemicals in acid! If you want to determine if a substance is an acid, try pouring it into a container and see if it bubbles.
The determination is by chemical analysis.
Addiction is not a choice, whether or not its a disease is debatable. The person whom it afflicts has no choice of whether or not they get addicted, except whether they are using the substance that they could get addicted to.
The pink bump on your dog could be a variety of things, such as a skin tag, wart, or cyst. It is best to have a veterinarian examine it to determine the cause and whether it is a concern.
You could determine whether the rock cooled underground or above the surface.
Add some kind of substance, and then if this forms or does not form a substance it will prove whether the I negative ion is in the presence.
Without more context or information, it is difficult to determine exactly what the green solution is. It could be a variety of things such as a cleaning solution, plant fertilizer, or a chemical solution. It is important to identify the specific product or substance to determine its purpose and proper usage.
melting point
Some substances with high pH's are toxic, e.g. bleach.