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telo118 [61]
3 years ago
7

Please help .....................

Chemistry
1 answer:
Advocard [28]3 years ago
8 0

Answer:

Explanation:

The photo is not there :o

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Which roller coaster <br> car has the least potential energy due to gravity
ratelena [41]

Answer:

the roller coaster car with the least potential energy would be the one at the bottom of the roller coaster

Explanation:

Hope this helped

4 0
4 years ago
Give the name for the molecular compound with the the formula P2I4.​
jenyasd209 [6]

Answer:

P2I4 is otherwise known as "<em>Diphosphorus Tetraiodide</em>"

3 0
3 years ago
Read 2 more answers
Many computer chips are manufactured from silicon, which occurs in nature as SiO2. When SiO2 is heated to melting, it reacts wit
riadik2000 [5.3K]

Answer:

A) SiO2 is the limiting reactant

B) Theoretical yield= 72333.3g

C) % yield =91.5%

Explanation:

SiO2(s) + 2C(s) --------------> Si(s) + 2CO(g)

n(SiO2)= 155000/60 = 2583.33 mols

n(C)= 79000/12= 3291.66 mols

a)SiO2 is the limiting reactant

According to the balanced reaction equation,

60g of SiO2 produced 28g of SiO2

155000g of SiO2 will produce 155000×28/60= 72333.3g

Therefore theoretical yield of Si= 72333.3g

% yield= 66200/72333.3×100/1 =91.5%

5 0
4 years ago
Is vinegar a compound or a mixture?
Nady [450]
Vinegar is a mixture because other thing are added to make a whole new thing
7 0
4 years ago
Sample of neon has a volume of 75.8 L at STP? How many miles are present
harina [27]
1 mole ---------- 22.4 L at ( STP)
? moles -------- 75.8 L

75.8 x 1 / 22.4 => 3.3839 L

hope this helps!
3 0
3 years ago
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