Science.

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

What are two ways in which you can change the concentration of a solution?

1. By adding more solute. 2.Adding or removing solvent.

A mixture that has a lot of solute dissolved in it is...

A Concentrated Solution.

What is a mixture that has only a little solute dissolved in it?

A Dilute Solution.

What is a colloid?

A colloid is a mixture which the particles can not be seen and are large enough to scatter light.

What is a solution?

A homogeneous mixture of a solvent and (a) solute(s), which may be solids, liquids, gases, or a combination of these.

What is a suspension?

A suspension is a mixture which its particles can be seen and can't scatter light.

What is the difference between a compund and an element?

An element is a substance that contains only one type of atom. A compound is composed of more than one atom of different elements Example: Element: C (Carbon) or O (oxygen) Compound: CO *Carbon Monixide* (Carbon and Oxygen)

What is concentraction?

Concentration is the amount of one material in a certain volume of time.

Is the following true or false? Nonpolar compounds dissolve in polar solvents.

False

What is true about Temperature and Solubility? A.Most Solids become more soluble as the temperatre goes up. B.Most gases become less soluble as the tempurate goes up. C.Sugar dissolves better in cold water than in hot water D.Carbon Dioxide dissolves better in cold water than in hot water.

The Answer is A. It's true most solids become more soluble as the temperatre goes up.

What quantitites are compared when the concentration of a solution is measured?

The quantities of a solution that are compared when measuring a solution are the amount if a solute to the amount of a solvent or to the total amount of a solution.

What is the Universal Solvent?

Water

What is the difference between a solute and a Solvent?

In a solution, solvent is defined as the base substance, wherein the solute is being dissolved. While a solute is a substance that is dissolved into the solvent. It is not mandatory that a solution should be made up of only one solute and one solvent. In short, a solution can be prepared by combining two or more substances, provided the solutes are dissolving in the solvents. Example: Saltwater - salt is the solute and water is the solvent.

What is an element?

In chemistry, an element is a pure substance that cannot be broken down into any simpler substances by chemical methods. In that light, an element is the simplest kind of matter. Each element retains its own unique properties. For example, each element has its own atomic mass, and the number of protons and electrons for an element always remains the same, although the number of neutrons can vary. We're used to calling them elements, but we also call them chemical elements, and this is because they are the basis for chemical combinations and chemical reactions. Elements can bond with one another to form compounds.

Solution A contains 50G of Sugar; Solution B has 100G of Sugar. Can you tell which solution has a higher sugar concentration. Explain.

It can not be decieded because there isn't enough information given. Reason:It is not known what the volume for each Solution.

What is matter?

Matter is anything that has mass and takes up space.

What is a basic example of a Colloid?

Milk

What are three factors that affect the solubility of a substance?

Pressure, Tempurate, and the Type of Solvent.

A mixture that has so much solute in it that no more will dissolve is called a(n)...

Saturated Solution

How can solubility help you identify a substance?

Solubility can be used to identify a substance because it is a characteristic property of matter.

What is Solubility?

Solubility is a measure of how much solute can dissolve in a solvent at a given tempurature.

Which is more soluble in water, baking soda or sugar?

Sugar


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