Stoichiometry Sandwich Making practice

Start with 3 breads and 2 cheese. (a)   products are made.

• 1
• 2
• 3
• 4

Add a slice of cheese. How many products are made?

• 2

• 3

• 4

• 5

Now have 8 breads and 3 cheese. How many products are made?

• 2

• 3

• 4

• 5

Now try 8 breads and 8 cheese. How many products are made?

• 4

• 5

• 6

• 8

With the 8 breads and 8 cheese – what did you run out of first? (this is your limiting reactant)

• Bread

• Cheese

• Both

• Neither

Tags

NGSS.MS-PS1-5

Play with the sim and try to make only one sandwich with no leftovers. How many of each reactant were used?

• 1 bread, 1 cheese

• 2 breads, 1 cheese

• 1 bread, 2 cheese

• 2 breads, 2 cheese

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

Now maximize the number of products without having any leftovers. How many of each reactant are used?

• 3 breads, 3 cheese

• 4 breads, 4 cheese

• 5 breads, 5 cheese

• 6 breads, 6 cheese

Set it on a triple decker meat and cheese sandwich at the top. How many of each reactant will you need to make one triple decker meat and cheese sandwich?

• 2 meats, 1 cheese

• 3 meats, 2 cheeses

• 1 meat, 3 cheeses

• 2 meats, 2 cheeses

What is the limiting reactant in the triple decker sandwich?

• Bread

• Meat

• Cheese

• Lettuce

Make a single water molecule. How many of each reactant were used?

• 2 hydrogen, 1 oxygen

• 1 hydrogen, 2 oxygen

• 2 hydrogen, 2 oxygen

• 1 hydrogen, 1 oxygen

Tags

NGSS.MS-PS1-1