This is a common method for separating a solute from a solvent. Maple syrup is one solution processed using this method.
What is boiling?
100
An example of this process is when water evaporates from salt water lakes during dry, hot summers and salt is left behind.
What is crystallization?
100
Water that we drink is purified using these 2 methods.
What is physical and chemical methods?
100
You must include this when you state the solubility of a substance.
What is temperature?
100
Water and human blood fall in this area of the pH scale.
What is neutral.
200
Maple sap is a dilute solution of these 2 substances, plus small amounts of other substances needed by the trees.
What is sugar and water?
200
This separation process allows you to recover both the solvent and the solute.
What is distillation?
200
These are 2 examples of methods used to remove solid matter from water.
What is flotation and filtration?
200
These are 3 things you could do to make a solid dissolve more quickly in a liquid.
What is heat the solvent, shake the mixture or grind the solid into smaller pieces?
200
You could follow these steps to get pure sugar from a mixture of clean sand and pure sugar.
What is 1. add water to dissolve the sugar. 2. Filter the mixture to remove the sand. 3. Use distillation to evaporate the water or crystallization to recover the sugar.
300
In order to make 1 Litre of maple syrup you need to process this much sap.
What is 30-40L?
300
The process if distillation works this way.
What is the solution is heated until the solvent changes to a gas. The gas is then condensed back to a liquid by cooling. The solute does not change state and is left behind.
300
Once solid matter has been removed from water, chemicals are added for these 2 reasons.
What is to kill bacteria and balance the pH?
300
These are 2 different ways to tell an acid from a base.
What is use an indicator, such as litmus paper, or use the pH scale?
300
Water from the Dead Sea is about 8 or 9 times more salty than ocean water. This is how you might find out whether a sample of water from the Dead Sea is saturated or unsaturated with salt.
What is adding a small amount of salt to the sample. If it dissolves then the sample is unsaturated. If it doesn't dissolve then it is saturated.
400
These types of mixtures are easier to separate than solutions.
What is heterogeneous mixture?
400
In nature, fresh water is rarely pure. These 3 factors vary from lake to lake and river to river.
What is the types of solutes, their concentration in the water and the pH levels.
400
You are lost in the desert. You could use this method to obtain clean drinking water from impure water.
What is distillation?
400
When making maple syrup, the maple sap is first heated, rather than using the sap as is, for this reason.
What is in order to concentrate the sugary component of the solution because, as is, the sap is very dilute and not very tasty.
400
Your friend tells you she was able to dissolve 39g of salt in 100g of water and there was no undissolved solute at the bottom of the container, but, the known solubility of salt in 100g of water is 35.7g. The friend is telling the truth, here's why.
What is the friend did not include information about temperature. It is possible that she dissolved the salt at a higher temperature.
500
The Particle Model of Matter states that particles do these 4 things.
What is particles are always in motion, they vibrate, rotate and move from place to place.
500
The mass of a solute that will dissolve in a solvent depends on this.
What is temperature?
500
A base has a pH level in this range.
What is 7.1-14?
500
The quantity of solute dissolved in a solvent.
What is concentration?
500
A compound that turns one colour in an acid and a different colour in a base.