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ch4aika [34]
3 years ago
9

How might you add warm water to the beaker of cold water?

Chemistry
1 answer:
Trava [24]3 years ago
7 0
You get a tub of warm water and tip the warm water into the cold water
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For the reaction shown, calculate how many grams of each product form when the following amounts of reactant completely react to
stira [4]
This may help you
<span>You need to use some stoichiometry here. The only way to do that is if you're working in moles. Since you're given grams of Al, you can convert that moles by dividing by the molar mass. Then from looking at the coefficients in your equation, you can see that for however many moles of Al react, the same numbers of moles of Fe will be produced, but only half as many moles of Al2O3 will be produced. To go back to grams, multiply the moles of each product that you get by their molar masses!</span>
7 0
3 years ago
At a certain temperature, the solubility of n2 gas in water at 3.08 atm is 72.5 mg of n2 gas/100 g water . calculate the solubil
8090 [49]

According to Henry's law, solubility of solution is directly proportional to partial pressure thus,

\frac{S_{1}}{P_{1}}=\frac{S_{2}}{P_{2}}

Solubility at pressure 3.08 atm is 72.5/100, solubility at pressure 8 atm should be calculated.

Putting the values in equation:

\frac{0.725}{3.08}=\frac{S_{2}}{8}

On rearranging,

S_{2}=\frac{0.725\times 8}{3.08}=1.88

Therefore, solubility will be 1.88 mg of N_{2} gas in 1 g of water or, 188 mg of tex]N_{2}[/tex] gas in 100 g of water.

3 0
2 years ago
What mass of carbon dioxide (co2) can be produced from 15.6 g of c6h14 and excess oxygen?
madreJ [45]
C6H14+9.5O2=6CO2 +7H20
Number of moles of C6H14=15.6/86=0.1814 moles
so moles of CO2 = 6(0.1814)=1.088 
As the c6h14 has 1 is to 6 ratio with co2 
so
0.1814=mass/44
mass of co2 produced = 47.9 g

6 0
3 years ago
Read 2 more answers
5. Wskaż liczbę protonów w atomie glinu?<br>​
Scrat [10]

Answer:

write english bro

Explanation:

pls i cant understand

3 0
3 years ago
But volcanoes are not all bad. Can you assess the value of volcanoes for the Earth? Why are they necessary and what good do they
Gelneren [198K]

Answer:

yes

Explanation:

volcanoes have done wonderful things for the earth

  • They help cool off the earth removing heat from its interior
  • volcanic emissions have produced the atmosphere and the water of the oceans
  • volcanoes make islands and add to the continent

volcanoes are necessary because:

fertile is another advantage of volcanic activity."In places like Japan,Indonesia,Philippines,Hawaii,volcanic material mixed in with the soil provides a lot of important nutrients

8 0
2 years ago
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