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Radda [10]
3 years ago
8

Atoms of two different elements must have different

Chemistry
2 answers:
attashe74 [19]3 years ago
8 0
Atomic number The atomic number of each element is different than other Elements.
Akimi4 [234]3 years ago
8 0

Answer:

Atoms of two different elements must have different atomic numbers.

Explanation:

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Air pressure doesn't crush you because molecules in air push_________.
Fynjy0 [20]

◕‿↼ Hey There!

Answer → Air pressure doesn't crush you because molecules in air push ______ → in all directions ←

✨Hope This Helps!✨

4 0
2 years ago
A flask holds 3.01 x 1023 molecules of carbon dioxide. The container is holding ________
sammy [17]
 (B), because 1.0 moles would be 6.02 x 10^23 molecules. So you have half a mole.<span>
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8 0
3 years ago
Calculate the energy required to heat 406.0mg of cyclohexane from 33.5°C to 38.9°C . Assume the specific heat capacity of cycloh
N76 [4]

Answer:

Q = 4.056 J

Explanation:

  • Q = m<em>C</em>ΔT

∴ m = 406.0 mg = 0.406 g

∴ <em>C </em>= 1.85 J/g.K

∴ T1 = 33.5°C ≅ 306.5 K

∴ T2 = 38.9°C = 311.9 K

⇒ ΔT = 311.9 - 306.5 = 5.4 K

⇒ Q = (0.406 g)(1.85 J/gK)(5.4 K)

⇒ Q = 4.056 J

6 0
3 years ago
What mass of natural gas (ch4) must you burn to emit 272 kj of heat?
balandron [24]
CH4 + 2 O2 ---> CO2 + 2 H2O Q = 891,6 kJ / mol CH4

1 mol CH4 = 16 g

16 g ---- 891,6 kJ
x g ----- 272 kJ

x = 272 kJ × 16 g / 891,6 kJ = 4,88 g

You must burn 4,88 g of CH4.

:-) ;-)
7 0
3 years ago
Butane is also a molecular compound. what is its formula? how many atoms does it contain?
pishuonlain [190]
The formula of butane is C4H10 but I don't how many atoms it contains though
5 0
3 years ago
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