If oil molecules are nonpolar, what kind of solvent is required to remove an oil stain?
nonpolar
polar
unsaturated
saturated
It is a substance that exists in the greatest quantity in a solution, and it's usually a liquid.
solvent
It is a mixture in which two or more substances are evenly mixed.
homogeneous mixture
When immiscible components of a mixture settle out, the most dense liquid forms which layer?
top layer
middle layer
bottom layer
Which of the following will be affected when we change the temperature and pressure?
none of the choices
the polarity of the solvent needed to dissolve a solute
the solubility of a solute in a particular solvent
the concentration of an unsaturated solution
Which of the following refers to liquid that dissolves something?
compound
solute
element
solvent
Which of the following refers to two or more substances that are not chemically combined together?
element
alien
mixture
compound
When you dissolve sugar into hot tea, what is the solvent?
glass
hot
hot tea
sugar
It is a mixture in which substances are not evenly mixed.
heterogeneous mixture
How do you obtain salt from a mixture of sand and salt?
Filtration - dissolving in water - evaporation
Evaporation - filtration - dissolving in water
Dissolving in water - filtration - evaporation
Dissolving in water - evaporation - filtration
It is a method for separating dissolved substances from one another.
Paper chromatography
cannot be dissolved
soluble
insoluble
It refers to the amount of solute that is dissolved in a solution.
concentration
Which of the following refers to a group of 2 or more atoms (same or different)?
solution
substance
atoms
molecules
A separation technique which separates an insoluble solid from a liquid with a beaker and a funnel.
distillation
paper chromatography
filtration
evaporation
When you dissolve salt into your soup, what is the solute?
salt
bowl
water
soup
How many substances are in a pure substance?
2
1
4
3
What are the 3 states of matter?
solid, liquid, or gas
Which of the following BEST refers to water?
a nonpolar substance
a polar compound
an ionic compound
an insoluble substance
can be dissolved
soluble
insoluble
Which of the following is a substance that is made of one type of atom?
neutron
compound
solution
element
Identify the separation method.
Filtration
Which states of matter is our focus in discussing our topics on Solutions and Methods of Separation?
liquid
solid
gas
plasma
Which of the following is the BEST way to get salt from salty water?
Filtration
Evaporation
Distillation
Paper Chromatography
When doing chromatography, what are we going to draw on the chromatography paper?
None of the choices
Draw on a horizontal line on the paper
Both vertical and horizontal lines
Draw on a vertical line on the paper
It dissolves in the solvent to make a solution.
solute
A mixture is made of at least two different substances.
True
False
Which of the following refers to a solid that gets dissolved?
compound
solvent
element
solute
Identify the separation method.
Evaporation
Which of the following refers to substance made of molecules of two or more DIFFERENT elements and compounds?
element
compound
solution
alien
What are the 4 methods of separation that T.Marc asked you to watch on Edpuzzle?
Filtration, Evaporation, Distillation, and Paper Chromatography
What are the 2 categories in which we can classify Matter?
elements and substances
substances and mixtures
elements and solutions
mixtures and compounds
Which of the following refers to a mixture made of a solute and solvent?
solution
element
substance
compound
Which of the following is TRUE about solubility?
It refers to how easily a solute dissolves in a solution.
It refers to how much of a substance is in a solution.
It is a large amount of saturated solution.
It refers to how easy it is to solve a problem.
It is always made up of the same combination of atoms.
substance
What is the MAIN difference between polar molecules and nonpolar molecules?
There are more than one atom of the same element.
The atoms are chemically bonded together.
The electrons are not shared equally.
There are atoms of diiferent elements.
Which of the following is the name used to describe the solid left in the filter paper during filtration?
Filtrate
Distillate
Remainder
Residue
During distillation, what do you use to cool the water?
flask
beaker
test tube
condenser