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lapo4ka [179]
3 years ago
14

what's the advantage and disadvantage of How does the number of "carbon" atoms in different alcohol affect the energy density of

alcohol ( like Pentanol, butanol, propanol and methanol?
Chemistry
1 answer:
slega [8]3 years ago
6 0
For example carbon has three naturally occuring isotopes called carbon 12, carbon, 13, and carbon 14 (the 12,13,14 are the mass numbers) they are all carbon atoms because they contain 6 protons and have the atomic number of 6 but a different mass number. Carbon 12 and carbon 13 are stable isotopes of carbon but carbon 14 is unstable and therefore radioactive when an element undergoes radioactive decay the rearrangements of protons and neutrons can cause the nuclei to emit high-energy
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Identify the following neutral elements by their condensed electron configurations. (Enter the chemical symbol or name of the el
Xelga [282]

Answer: [Kr] 5s1 4d10 silver

[Xe] 6s2 4f14 5d7 Iridium

[Ar] 4s2 3d10 4p4 selenium

[Kr] 5s1 4d4 niobium

[Xe] 6s1 4f14 5d10 gold

[Kr] 5s2 4d10 5p4 tellurium

Explanation:

Selenium and tellurium will have the same properties because they both belong to group 16 in the periodic table.

Silver and gold will have the same properties because they both belong the group 11 in the periodic table.

Elements having the same outermost shell configuration show similar properties since chemical reactions occur by loss or gain of electrons. This loss or gain is determined by the number of electrons occupying the outermost shell. Elements in the same group have the same outermost shell electron configuration and similar properties.

5 0
3 years ago
What is the molar mass of magnesium hydroxide
leonid [27]
The molar mass of magnesium hydroxide is 58.3197 g/mol.
7 0
3 years ago
Read 2 more answers
Pleaaase argent !!! Explain ur answers
shtirl [24]

Answer:

1. Dynamic equilibrium is a equilibrium in which the rate of forward direction is equal to the rate of backward direction. It is represented by a right left arrow.

2) Equilibrium constant is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric ratios. It is expressed as K_c  

For the given chemical reaction:

Fe^{3+}(aq)+SCN^-(aq)\rightleftharpoons [Fe(SCN)]^{2-}(aq)

The expression for K_c is written as:

K_c=\frac{[[Fe(SCN)]^{2-}]}{[Fe^{3+}][SCN^-]}

3) The value of K_c is 1000 , which means the products are more favoured as compared to reactants and that the equilibrium lies more towards product side.

4 0
3 years ago
1.875mps into kilometers per hour​
worty [1.4K]

Answer:

6,75 kilometres per hour

6 0
3 years ago
when you burn 2 L of propane (C3H8) at stp , you find 5.6L of carbon dioxide has been produced what is the percent yeild
Oksanka [162]

Answer:

93%

Explanation:

First write the balanced reaction

C3H8 + 5O2 --> 3CO2 +4H2O

2nd, find the theoretical yield

2L C3H8 (1mol/22.4L) (3 mol CO2/1 molC3H8) (22.4 L/ 1mol) = 6L

3rd, Find percent yield

%yield = (actual / theoretical) x100 = (5.7/6) x 100 = 93%

7 0
3 years ago
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