Answer:
1. D (24.0 moles CO2)
2. A (.239 moles H2)
Explanation:
1. First Balance the equation
1 C3H8 + 5 O2 ---> 3 CO2 + 4 H2O
Then set up a stoiciometric equation so that the moles of O2 cancel out
40mol O2 x 
= 24.0 moles CO2
2. Set up a stoichiometric equation
10 grams Fe x 
x 
= 0.239 moles H2
1
2
5
Explanation:
start from the left tor right
Answer:
a. release of heat flames or light - Physical Change
b. formation of precipitate - Chemical Change
c. change in substances size - Physical Change
d. change in an objects shape - Physical Change
e. change in an objects phase of matter - Physical Change
f. releasing gases/bubbles - Chemical Change
Explanation:
These are all either changes in physicality or in chemical structures; hope I helped either way!
They all have something to do with heat
Answer:
Its can affect the safety of products by, for example, if you put raw chicken in the oven and don't cook it for long enough, it can make you sick
Explanation:
