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4 years ago

Will carbon and hydrogen atoms most likely form an ionic bond or a covalent bond?

Chemistry

2 answers:

Andreas93 [3]4 years ago

7 0

answer is covalent bond because carbon has 4 valence electron and shared them hence it is a covalent bond.

Sidana [21]4 years ago

5 0

In most cases, carbon shares electrons with other atoms (usual valence of 4). This is because carbon typically bonds with elements which have a similar electronegativity. Examples of covalent bonds formed by carbon include carbon-carbon, carbon-hydrogen, and carbon-oxygen bonds

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What mass of bromine trifluoride, BrF 3 , has the same number of fluorine atoms as 25.0 g of oxygen difluoride, OF2?

enyata [817]

Answer:

42.29 g of BrF₃.

Explanation:

Molar mass of OF2 = 16 + (2 * 19)

= 54 g/mol

Number of moles of OF₂ = mass / molar mass

= 25/54

= 0.46 mol.

Number of OF₂ molecules = number of moles * avogadros constant

= 0.46 * 6.022 x 10²³

= 2.8 x 10^23 molecules of OF2.

Since each OF₂ molecule has 2 Fluorine atoms,

Number of Fluorine atoms in 25.0 g of OF₂ = 2 x 2.8 x 10²³

= 5.576 x 10²³ atoms of Fluorine.

Since 1 BrF₃ molecule has 3 Fluorine atoms,

number of BrF₃ molecules = Number of Fluorine atoms / 3

= 5.576 x 10²³ / 3

= 1.8587 x 10²³ molecules of BrF₃.

Number of moles of BrF₃ = number of molecules of BrF₃ / Avogadros constant

= (1.8587 x 10²³) / (6.022 x 10²³ )

= 0.30865 moles of BrF₃.

Molar mass of BrF₃ = 80 + (19 * 3)

= 137 g/mol

mass of BrF₃ = number of moles * molar mass

= 0.30865 * 137

= 42.29 g of BrF₃.

6 0

4 years ago

In the following reaction, how many grams of nitroglycerin C3H5(NO3)3 will decompose to give 120 grams of water?

Dovator [93]

1) Chemical equation

<span>4C3H5(NO3)3(l) 12CO2(g) + 6N2(g) + 10H2O(g) + O2(g)

$4C_3H_5(NO_3)_3(l) -\ \textgreater \ 12CO_2(g) + 6N_2(g) + 10H_2O(g) + O_2(g)
$

2) Molar ratios

4 mol C3H5(NO3)3 : 10 mol H2O

3) Convert grams of water into number of moles:

numer of moles = mass in grams / molar mass = 120 g / 18.0158 g/mol =

number of moles = 6.66 moles H2O.

4) use proportion and solve for x

4 mol C3H5(NO3)3 / 10 mol H2O = x / 6.66 mol H2O

=> x = 6.66 mol H2O * 4 mol C3H5(NO3)3 / 10 mol H2O = 2.66 mol C3H5(NO3)3

5) Convert </span><span>2.66 mol C3H5(NO3)3 into grams

mass in grams = molar mass * number of moles = 227.0995 g * 2.66 mol = 605.07 g

Answer: 605.07 g
</span>

4 0

4 years ago

Phosphorus trichloride, PCl3, is commonly used in the chemical industry as a source of phosphorus in various reactions. Indicate

kipiarov [429]

Answer:

Electron pair geometry- tetrahedral

Molecular geometry- Trigonal Pyramidal

Explanation:

PCl3 has four electron domains on the outermost shell of the central atom in the molecule. This implies that it has a tetrahedral electron pair geometry according to Valence Shell Electron Pair Repulsion theory.

These four electron pairs are composed of three bond pairs and one lone pair. The presence of a lone pair of electrons leads to a trigonal pyramidal molecular geometry due to electron pair repulsions.

6 0

3 years ago

A neutral atom has 8 electrons and 8 neutrons. Which of the following correctly represents the atom? A) carbon-16 B) oxygen-16 C

bija089 [108]

Answer:

Explanation:

Oxygen is the 8th element in the periodic table. This means that oxygen has 8 protons and 8 electrons. In order to get the number of neutrons you take the atomic weight in this case 15.9999~16 and you subtract it by the number of protons (16-8).

6 0

3 years ago

Read 2 more answers

Which acid is almost completely ionized in a dilute solution at 298k?

Alex777 [14]

Considering choices;
a. CH3COOH
b. H2S
c. H2PO4
d. HNO3
The answer would be HNO3; this is because it the strongest acid. Strong acids are acids that are fully ionized while weak acids are only partially ionized. At the same concentrations, strong acids have a higher concentration of hydrogen than weak acids. Examples of strong acids include; hydrocloric acid and nitric acid, while weak acids include; ethanoic acids.

5 0

4 years ago