A pure substance is a substance that consists solely of the same atoms/molecules.
So a volume of water that contains only H2O is a pure substance. A block of iron that contains only Fe atoms is pure substance. A pure substance can be composed of atoms or molecules as I said before BUT they have to be exactly the same.
A substance that has constant chemical composition and characteristics
To classify a substance as pure, one must know that it is made up of only one type of particle, such as atoms or molecules, and that it has a consistent chemical composition. Pure substances have distinct physical and chemical properties that differentiate them from mixtures.
A pure substance that cannot be broken down into any other substances by chemical or physical means Hope that can help!!
element or compound
To find the density of a substance, you need to know its mass and its volume. The mass is usually measured in grams or kilograms, while the volume can be measured in cubic centimeters or milliliters for solid objects, or in liters for liquids. By dividing the mass by the volume, you can calculate the density of the substance.
The weight of 1 liter of a substance in kilograms depends on the density of the substance. To convert, you would need to know the density of the substance in order to calculate the weight in kilograms.
The conversion from milliliters (mL) to micrograms (μg) depends on the density of the substance. Without knowing the density, it is not possible to provide a direct conversion. You would need to know the density of the substance in order to make the conversion.
a pure substance
To classify a sample of air as a solution, suspension, or colloid, you would need to know the composition of particles in the air. Solutions are homogeneous mixtures where one substance is dissolved in another, suspensions have visible particles that settle out over time, and colloids have evenly dispersed particles that do not settle. By analyzing the size and behavior of the particles in the air sample, you can determine its classification.
Moisture and Temperature
Because it can harm someone.
i have a pertction order on someone and i want to know if i can contact him?
Grrr i need help to know what does it mean to classify a real number and how you do it i have hw due tommorow
What do you mean by that something?
i don't know that is why am asking you
In order to do that, you have to know how many mg are in each ml, and that's different for every substance. It's called the 'density' of the substance.
Quite a lot - depending on the specific substance you are talking about. What do you want to know?
Because there are sometimes multiple meanings for words such as mole (face, animal) and you need to know which is which so they classify it.
Yes, spammers do it all the time. However, if you are emailing someone you don't know - be careful, and you must have their email address in order to send them an email.
they have to know how to use proper grammer and make sure they know how to tell the story with characters and a plot and also know about punctuation.
In order to know if someone is satisfied with the church of his day one would need to know who you are referring to.