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prohojiy [21]
3 years ago
6

PLS DEFINE ALL THE FOLLOWING DOWN BELOW! I WILL GIVE U POINTS, A THANKS, 5 STARS, AND A BRAINLIEST!!! PLS ANSWER ALL AND PLS ANS

WER CORRECTLY! THANK U AND HAVE A GOOD DAY :)

Chemistry
1 answer:
umka2103 [35]3 years ago
4 0
Do not trust people that share viruse into your phone/computer’s


DO NOT TRUST THESE LINKS
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NItrogen in air reacts at high temperature to form NO2 according to the reaction:
Rina8888 [55]

Answer:

The correct answer is option E.

Explanation:

Structures for the reactants and products are given in an aimage ;

Number of double bonds in oxygen gas molecule = 1

Number of double bonds in nitro dioxide gas molecule = 1

Number of single bond in in nitro dioxide gas molecule = 1

Number of triple bonds in nitrogen gas molecule = 1

N_2+2O_2\rightarrow 2NO_2,\Delta H=?

\Delta H=[2 mol\times \Delta H_{f,NO_2}]-[1 mol\times \Delta H_{f,N_2}-2 mol\times \Delta H_{f,O_2}]

\Delta H_{f,NO_2}=33.18 kJ/mol

\Delta H_{f,N_2}=0 (pure element)

\Delta H_{f,O_2}=0 (pure element )

\Delta H=2 mol\times 33.18 kJ/mol=66.36kJ=15.86 kcal

The enthalpy of the given reaction is 15.86 kcal.

6 0
3 years ago
Who is dalton and what is daltons theory
ludmilkaskok [199]

Answer:

Dalton's atomic theory proposed that all matter was composed of atoms, indivisible and indestructible building blocks. While all atoms of an element were identical, different elements had atoms of differing size and mass.

7 0
3 years ago
What is the pH of a solution that has 7.8x10-9 [H+]?
xxTIMURxx [149]

Answer:

8.11

Explanation:

pH = -log[H+]

pH = -log[7.8 x 10^{-9}]

pH = 8.107905...

pH = 8.11

5 0
2 years ago
Consider the following balanced redox reaction. 2S2O32- + I2 → 2I- + S4O62- How many moles of I2 can be consumed by 0.65 mL of 0
love history [14]
B. 1.95 x 10-3 moles.. that can be consumed by 0.65 mL of 0.1m
7 0
3 years ago
Aluminium sulphate is organic or inorganic compound​
MAXImum [283]

Answer:

Inorganic compound the vast majority of compounds, including all aluminum-containing minerals and all commercially significant aluminum compounds, feature aluminum is in oxidation state 3+. the coordination number of such compounds varies, but generally Al3+ is either six or four coordinate.

<h3><em>hope</em><em> it</em><em> helps</em></h3>

8 0
2 years ago
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