Mixtures and Solutions

What is the mass of a mixture made of 49 g of lemonade powder dissolved into 62 g of water?

• 62 g

• 100 g

• 111 g

• 123 g

Tags

NGSS.MS-PS1-5

How can we make a chemical reaction bigger?

• Increase temperature

• Pour water on it

• Add more reactants / ingredients

• You cannot make it bigger

If I dissolve 13 g of salt into 30 g of water, what is the mass of my new solution?

(a)  

Tags

NGSS.MS-PS1-5

How can I separate salt and water?

• Condensation

• Concentration

• A filter

• Evaporation

You can identify a substance based on how much of it can dissolve until it reaches saturation.

• True

• False

If I melt 70 g of ice by leaving it outside in a bowl, what is the mass of the water left in the bowl?

(a)  

Tags

NGSS.MS-PS1-4

What is the BEST evidence that a chemical reaction occurred?

• Color change

• Melting

• Evaporation

• A new solid (precipitate) formed

Tags

NGSS.MS-PS1-2

Will a solution with LESS salt in it go up or down on a balance?

• UP

• DOWN

• EQUAL

If Solution A has 25 g of lemonade powder mixed in, and Solution B has 24 g of lemonade powder mixed in, which is more concentrated?

• Solution B

• Solution A

• Neither

• They are equal

Elephant toothpaste is an example of....

• Melting

• A chemical Reaction

• Gas being released / formed

• Reversible change

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2