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kumpel [21]
2 years ago
14

Which of the following is the number of hydrogen atoms in a mole of hydrogen gas

Chemistry
1 answer:
german2 years ago
5 0
I think B but not sure
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Calculate the energy released when 24.8 g Na2O reacts in the following reaction
WARRIOR [948]

Answer:

hey you wanna get it right try this one: 48.0 kcal

was released... at constant pressure.

Explanation:

5 0
2 years ago
Consider the unbalanced equation for the oxidation of butene. C4H8 + 6O2 Right arrow. CO2 + H2O For each molecule of C4H8 that r
antiseptic1488 [7]
Answer is C4H8 + 6O2 —> 4CO2 + 4H2O
4 0
2 years ago
Which of these pH numbers indicates the highest
Korvikt [17]
<span>(1) 5 because it it below 7 and anything below ph 7 is acidic! Hope this helps you!! =')</span>
7 0
3 years ago
Read 2 more answers
In a reaction, gaseous reactants form a liquid product. The heat absorbed by the surroundings is 1.1 MJ, and the work done on th
ratelena [41]

Answer: \Delta E is 1155 kJ

Explanation:

According to first law of thermodynamics:

\Delta E=q+w

\Delta E=Change in internal energy

q = heat absorbed or released

w = work done or by the system

w = work done by the system=-P\Delta V  {Work done on the system is positive as the final volume is lesser than initial volume}

w =13.2kcal=55.2kJ   (1kcal=4.184 kJ)

q = +1.1 MJ = 1100 kJ  (1MJ=1000kJ)   {Heat absorbed by the system is positive}

\Delta E=1100kJ+(55.2)kJ=1155kJ

Thus \Delta E is 1155 kJ

4 0
3 years ago
Which shows an isomer of the molecule below?
babunello [35]
Above question is incomplete. Complete question is attached below
.......................................................................................................................

Correct Answer: Option D i.e. CH3CH2CH2CH2CH3

Reason:
Isomers are the compounds having same molecular formula, but different structural formula.

The molecular formula of the compound is C5H12

The compound present is question (i.e. 2-methyl butane) and option D (n-pentane) has same molecular formula. Hence, they are isomers.

However, compound present in option A, is the same compound provided in question. Hence, it is not an isomer. Compounds reported in option B and C has one carbon atom less and more, respectively as compared to the compound reported in question. Hence, they are also not isomers. 

5 0
2 years ago
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