area of trapezoid corrections below. tomorrow quiz on area of square, rectangle, paraellogram, triangle and trapezoid. work on mid chapter review.
Science 2.1 pg.28
soft drink solution - solute: carbon dioxide, flavors, sugars. solvent: water
cow’s milk – solute: fats, sugars, protein, calcium, vitamins. solvent: water
air – solute: oxygen gas, argon, carbon dioxide, impure gases. solvent: nitrogen gas
heliox – solute: oxygen. Solvent: helium
2.2
Popcorn and milk have a greater volume alone/separately
than when they are combined.
When sugar (solute) is dissolved in water (solvent) the
particles mix, they move close together/attracted to each other, they fill the
empty spaces between each other and, as a result, the solution has less volume
than sugar and water separately.
A solute (sugar) whose particles are attracted to a
solvent’s particles (water) is said to be soluble (able to dissolve).
A solute (sugar) whose particles are not attracted to a
solvent’s particles (oil) is said to be insoluble (unable to dissolve).
Drink crystals:
Sugar, color, flavor (solutes) they are dissolved in
water (solvent)
·
Particles are attracted to one another
·
Particles move closer to one another
·
Particles fill empty spaces between each
other
·
Solution has less volume than all the
solutes separately
Sugar is soluble in water since the particles are
attracted
Oil particles are insoluble in water since the
particles are not attracted
Fudge: chocolate & sugar (solutes) dissolved in
milk (solvent)
With heat, chocolate & sugar particles move closer,
attracted to, fill empty spaces in milk particles to form solution; when
cooled, it must solidify/harden
