1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
bagirrra123 [75]
3 years ago
11

What is the most likely oxidation state of sodium

Chemistry
2 answers:
Eddi Din [679]3 years ago
8 0

Answer:

mmhmm

Explanation:

OLEGan [10]3 years ago
6 0

Answer:

The oxidation number of sodium in the Na+ ion is +1

Explanation:

oxidation number of chlorine in the Cl- ion is -1. 3. The oxidation number of hydrogen is +1 when it is combined with a nonmetal as in CH4, NH3, H2O, and HCl.

You might be interested in
Pentaborane-9, B5H9, is a colorless, highly reactive liquid that will burst into flame when exposed to oxygen. The reaction is 2
mina [271]

<u>Answer:</u> The amount of energy released per gram of B_5H_9 is -71.92 kJ

<u>Explanation:</u>

For the given chemical reaction:

2B_5H_9(l)+12O_2(g)\rightarrow 5B_2O_3(s)+9H_2O(l)

The equation used to calculate enthalpy change is of a reaction is:  

\Delta H^o_{rxn}=\sum [n\times \Delta H^o_f_{(product)}]-\sum [n\times \Delta H^o_f_{(reactant)}]

The equation for the enthalpy change of the above reaction is:

\Delta H^o_{rxn}=[(5\times \Delta H^o_f_{(B_2O_3(s))})+(9\times \Delta H^o_f_{(H_2O(l))})]-[(2\times \Delta H^o_f_{(B_5H_9(l))})+(12\times \Delta H^o_f_{(O_2(g))})]

Taking the standard enthalpy of formation:

\Delta H^o_f_{(B_2O_3(s))}=-1271.94kJ/mol\\\Delta H^o_f_{(H_2O(l))}=-285.83kJ/mol\\\Delta H^o_f_{(B_5H_9(l))}=73.2kJ/mol\\\Delta H^o_f_{(O_2(g))}=0kJ/mol

Putting values in above equation, we get:

\Delta H^o_{rxn}=[(5\times (1271.94))+(9\times (-285.83))]-[(2\times (73.2))+(12\times (0))]\\\\\Delta H^o_{rxn}=-9078.57kJ

We know that:

Molar mass of pentaborane -9 = 63.12 g/mol

By Stoichiometry of the reaction:

If 2 moles of B_5H_9 produces -9078.57 kJ of energy.

Or,

If (2\times 63.12)g of B_5H_9 produces -9078.57 kJ of energy

Then, 1 gram of B_5H_9 will produce = \frac{-9078.57kJ}{(2\times 63.12)}\times 1g=-71.92kJ of energy.

Hence, the amount of energy released per gram of B_5H_9 is -71.92 kJ

8 0
3 years ago
What is convection cell​
kkurt [141]

Answer:

Explanation:

a self-contained convective zone in a fluid in which upward motion of warmer fluid in the center is balanced by downward motion of cooler fluid at the periphery.

3 0
3 years ago
Explain, in full sentences, in terms of heat transfer (what type of heat transfer /how do you know?) AND specific heat (why copp
Hatshy [7]
Yes copper and the data in the table
5 0
3 years ago
Charge on proton is?
QveST [7]

Answer:

positive

Explanation:

proton is a subatomic particle with a postive charge on it.

hope this helps!!! ☺️

7 0
3 years ago
Read 2 more answers
Solve as soon as possible with detailed step by step explanation ​
scoundrel [369]
Mr. Jones's prescription calls for 1.04 tablets per day. Based on this information, how many tablets should Mr. Jones take per day? a) 1.25 O b) 1.5 c) 1 O d) 2
8 0
2 years ago
Other questions:
  • The standard gibbs free energy of formation of ___ is zero: 1. h2o(l) 2. na(s) 3. h2 (g)
    12·1 answer
  • 49 grams of sulfuric acid, H2SO4, is dissolved in 1 liter of solution. Determine the molarity (M).
    14·1 answer
  • What is the main distinction between ionic and covalent bonding?
    6·1 answer
  • An element has 15 protons, 11 neutrons, and 17 electrons. What is the name of the<br> element?
    13·1 answer
  • Write a balanced chemical equation for the reaction of aqueous potassium hydroxide with aqueous iron(III) chloride to form solid
    15·1 answer
  • igneous rocks that are dense and dark-colored thet form from magma that is rich in iron and magnesium and poor in silica
    15·2 answers
  • Una piedra es lanzada horizontalmente desde la azote de un edificio de 30 metros de altura, con una velocidad de 12 m/s. Hallar
    15·1 answer
  • What kind of structure do carbon atoms form in an aromatic compound?
    11·1 answer
  • Why do chemical properties change?
    15·1 answer
  • C2H6O + _02&gt; _CO2 + _H20<br> +<br> Please help balance this equation
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!