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Lorico [155]
3 years ago
6

A chemistry student is recording the electric charges of some atoms. Use the results in the chart to answer the following questi

ons.
Atom Electric Charge
Carbon −4
Nitrogen +5
Oxygen −2
Part A:
Write an equation to find the difference in electric charge between the Nitrogen atom and the Oxygen atom.

Part B:
Using the equation you wrote in Part A, what is the difference in electric charge between the two atoms?
Chemistry
1 answer:
o-na [289]3 years ago
4 0
Answer Can someone here please look at my questions and see if you can help
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A 101.2 ml sample of 1.00 m naoh is mixed with 50.6 ml of 1.00 m h2so4 in a large styrofoam coffee cup; the cup is fitted with a
Murrr4er [49]

The enthalpy change of the reaction when sodium hydroxide and sulfuric acid react can be calculated using the mass of solution, temperature change, and specific heat of water.

The balanced chemical equation for the reaction can be represented as,

H_{2}SO_{4}(aq) + 2NaOH (aq) ----> Na_{2}SO_{4}(aq) + 2H_{2}O(l)

Given volume of the solution = 101.2 mL + 50.6 mL = 151.8 mL

Heat of the reaction, q = m C .ΔT

m is mass of the solution = 151.8 mL * \frac{1 g}{1 mL} = 151.8 g

C is the specific heat of solution = 4.18 \frac{J}{g. ^{0}C}

ΔT is the temperature change = 31.50^{0}C - 21.45^{0}C = 10.05^{0}C

q = 151.8 g (4.18 \frac{J}{g ^{0}C})(10.05^{0}C) = 6377 J

Moles of NaOH = 101.2 mL * \frac{1L}{1000 mL}*\frac{1.00 mol}{L} = 0.1012 mol NaOH

Moles of H_{2}SO_{4} = 50.6 mL * \frac{1 L}{1000 mL} * \frac{1.0 mol}{1 L} = 0.0506 mol H_{2}SO_{4}

Enthalpy of the reaction = \frac{6377 J*\frac{1kJ}{1000J}}{0.0506 mol} = 126 kJ/mol

5 0
3 years ago
The measure of the attraction that an atom has for electrons involved in chemical bonds is known as: ? electron affinity / radio
swat32
The answer is the last option. Electronegativity is the measure of the attraction that an atom has for electrons involved in chemical bonds.  It relates to covalent bonds where electrons are shared. The Pauling scale is the most used.
5 0
3 years ago
Read 2 more answers
Write a chemical equation for the following decomposition reaction.
Aneli [31]
<span>the chemical equation will be Ni(OH)2(s)------>heat---> NiO(s) + H2O(g)
</span><span>we know that the heat supplied to decompose the compound.In the result the product H2O is assumed to be in the vapor state so that is gas.

hope it helps
</span>
7 0
3 years ago
A 100.-gram sample of H2O(l) at 22.0°C absorbs 830. joules of heat. What will be the final temperature of the water? Hurry pleas
k0ka [10]

Answer:

That is extremely confusing. Try contacting your prof.

Explanation:

4 0
2 years ago
2. What physical force causes suspensions to settle
MakcuM [25]

Hello!

Answer:

Gravity

Explanation:

It can settle down and separate over time due to gravity.

Hope this helps! Have a great day!

8 0
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