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zzz [600]
3 years ago
8

Trees, solar energy, and water are examples of:

Chemistry
2 answers:
avanturin [10]3 years ago
4 0
Renewable energy resources
lara31 [8.8K]3 years ago
3 0
Trees are a renewable resource that can be used as an energy source.
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7. Assume that you have collected 867 L of nitrogen gas at STP. What is the mass of the nitrogen gas?
jekas [21]

Answer:

1083.6 g

Explanation:

At STP, 1 mol of any given mass will occupy 22.4 L.

With the information above in mind we can<u> calculate how many moles of nitrogen gas (N₂) are there in 867 L</u>:

  • 867 L ÷ 22.4 L/mol = 38.7 mol

Finally we convert 38.7 moles of N₂ into grams, using its molar mass:

  • 38.7 mol * 28 g/mol = 1083.6 g
6 0
3 years ago
Can anyone help me with this?
stiv31 [10]

Go To ScHoOl tO LeArN

8 0
4 years ago
How many grams are in 3.5 moles of H2O?
Lerok [7]

Answer:

Hi

Explanation:

We assume you are converting between moles H2O and gram. You can view more details on each measurement unit: molecular weight of H2O or grams This compound is also known as Water or Dihydrogen Monoxide. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles H2O, or 18.01528 grams.

3 0
3 years ago
Some chemical changes can be ______________ through another _______________ change.
zalisa [80]
Some chemical changes can be reactive through another chemical change?
3 0
3 years ago
Which of these Group 14 elements has the most metallic properties? 1. C 2. Ge 3. Si 4. Sn
seraphim [82]
I would say that the answer is Sn.
C-is a non-metal
Ge-is a metalliod (consists both non-metal and metal)
Si -is a metalloid
Sn- is a pure metal 
5 0
3 years ago
Read 2 more answers
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