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zaharov [31]
3 years ago
15

Medical Assistant professional

Chemistry
1 answer:
marin [14]3 years ago
8 0

Answer:

what does your question mean

Explanation:

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guajiro [1.7K]

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How many moles of hydrogen gas would be needed to react with excess carbon dioxide to produce 99.1 moles of water vapor?
denpristay [2]
It would take 198 mol to produce
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3 years ago
How much energy is required to heat 40g of water from -7 degrees Celsius to 108 degrees Celsius (Lf= 335,000J/Kg for ice)
solniwko [45]
The   energy  required  to heat  40g  of water  from -7 c  to 108 c is
1541000  joules

     calculation

Q(heat)=  M( mass)  x c(specific heat capacity) xdelta t( change in temperature)

M=  40g=  40/1000= 0.04 Kg
C=  335,000 j/kg/c
delta T   (    108 --7= 115  c)

Q  is therefore   =  0.04 g x  335000 j/kg/c  x 115 c  = 1541,000  joules


6 0
3 years ago
Science need ko po ng help di mo ako kase matalino salamat po
Lorico [155]

Answer:

1.An initial observation is the measurement that you take before you start any process that might cause a change. When you compare your subsequent observations with the initial one, you will see whether any change has taken place, and you will be able to measure the change.

Explanation:

D ko po alam yung iba

6 0
3 years ago
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