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postnew [5]
2 years ago
6

Which of the following is the empirical formula for C4H8?

Chemistry
2 answers:
TEA [102]2 years ago
7 0
It would be CH2! you’re just simplifying C4H8, 4 can go into C4 1 time (so we just say C) and 4 can go into H8 2 times (H2)
anastassius [24]2 years ago
6 0
The answer would be D!!!!!
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(d)
Masteriza [31]

Explanation:

hope this helps you,

-s.

4 0
2 years ago
Suppose you have an Avogadro's number of nitrogen atoms. How many grams does this represent? Enter your answer to one decimal pl
shusha [124]

Answer:

2.3 x 10-23 g.

Explanation:

The mass of a single atom is the mass number, 14, is the mass in grams of one mole of carbon.

One mole of Nitrogen atom is 6.022 x 1023 atoms (Avogadro's number). This can then used to convert a nitogen atom to grams by the ratio:

mass of 1 atom / 1 atom = mass of a mole of atoms / 6.022 x 10^23 atoms.

mass of 1 atom = mass of a mole of atoms / 6.022 x 1023

mass of 1 N atom = 14 / 6.022 x 10^23 N atoms

mass of 1 N atom = 2.325 x 10^-23 g

The mass of a single Nitrogen atom is 2.325 x 10-23 g.

3 0
3 years ago
3. Determine the enthalpy of formation for propane. 3C(s, gr) + 4H2(g) ---> C3H2(g) CzH3(g) AH = -2219.9 kJ C(s, gr) AH = -39
Mars2501 [29]

Answer:

b I hope this is right good luck

7 0
3 years ago
An object is traveling at a speed of 7500.0 centimeters per second. How many kilometers per day
ivann1987 [24]

Answer:

6,480 kilometers

Explanation:

1 day = 86,400 seconds

1 kilometer = 100,000 centimeters

Equation:

86,400 x 7,500 = 648,000,000

648,000,000 ÷ 100,000 = 6,480

Hope this helped :  )

7 0
2 years ago
Which of the following is true about the efficiency of energy transfer in an ecosystem?
Firlakuza [10]

Answer:

C. The less energy the organism requires, the more efficient the energy transfer.

8 0
3 years ago
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