Bellwork 1 Week 5 3rd Nine Weeks

Cl₂ + 2KBr → Br₂ + 2KCl How many grams of potassium chloride (KCl = 74.55 g/mol) can be produced from 356 g of potassium bromide (KBr = 119 g/mol)?

• 749 g

• 223 g

• 479 g

• 814 g

CH₄ + 2 O₂ → CO₂ + 2 H₂O
How many moles of carbon dioxide are produced from the combustion of 110 g of CH₄?

• 13.7 mol
• 2.75 mol
• 6.11 mol
• 6.85 mol

Using the following equation:
Fe₂O₃(s) + 3H₂(g) → 2Fe(s) + 3H₂O(l)
How many moles of iron can be made from  6 moles H₂? 

• 4 moles Fe
• 6 moles Fe
• 9 moles Fe
• 2 moles Fe

______ means to reduce volume.

• Compress
• Expand

How do you convert from Celsius to Kelvin?

• Add 273
• Subtract 273
• Multiply by 273
• Divide by 273

True or false:  Gases have small particles with fast motion and high kinetic energy.

• True
• False

Gas Laws involve what three terms?

• Solid Liquid Gas 
• Speed Velocity Acceleration 
• Elements Compounds Mixtures 
• Pressure Temperature Volume 

What is 50 C in Kelvin?

• 223
• 323
• 100
• 50

Directly proportional means that as one value increases ....................

• the other stays the same 
• the other increases as well
• the other decereases
• the other goes to zero

Inversely proportional means as one value increases the other............. 

• increases 
• decreases 
• stays the same 
• goes to zero