11. Write down the molecular formula of following compounds by

Chemistry

1 answer:

Effectus [21]3 years ago

7 0

Answer:

a. NH3

b.

c. NaCl

d.

e. HCl

f. 

You might be interested in

Nucleic acids are chains of 5-carbon sugars linked by ____ bonds with an organic base protruding from each sugar.

Mekhanik [1.2K]

B) phosphodiester is the correct answer

3 0

4 years ago

Combustion vapor-air mixtures are flammable over a limited range of concentrations. The minimum volume % of vapor that gives a c

DochEvi [55]

Combustion equation of n-hexane:

2C₆H₁₄ + 19O₂ → 12CO₂ + 14H₂O

a)
Assuming we have 100 moles of air,
Oxygen = 20.9 moles
n-hexane required = 20.9/19 x 2
= 2.2 moles

LFL = Half of stoichometric amount = 2.2 / 2 = 1.1
LFL n-hexane = 1.1%

b)
1.1 volume percent required for LFL

1.1% x 1
= 0.0011 m³ of n-hexane required

6 0

3 years ago

Read 2 more answers

How many grams of na3po4 will be needed to produce 650. mL of a solution that has a concentration of na+ ions of 1.40 M

SashulF [63]

Answer:

I think its 1.40M Na^+ we convert to Na3PO4 which means we need 1.40M x (1 mole Na3PO4/3 mol Na^+) = 1.40 x 1/3 = 0.467 M Na3PO4.

Explanation:

7 0

4 years ago

If a stable element has an atomic number of 8, how many electrons does it have? HELP PLEASE!!!!!

mash [69]

8 because atomic number is the same as number of protons, protons and electrons have the same amount so that the element is neither positive nor negative.

6 0

3 years ago

The Lewis structure of which molecule requires resonance structures?A.) MgCl2B.) SiO2C.) SO2D.) OCl2

inna [77]

Answer: C.) SO2

Explanation: Sulfur Dioxide is the gaseous molecule which can show the resonance through lewis dot structure due to the presence of lone pairs of electrons present on all of the three atoms of the molecules. Moreover , Sulphur forms pie bond with the oxygen using p orbitals which forms a network of the conjugated system that help to elaborate the reason of the formation of the resonance structure.

Options (a), (b), and (d) cannot form resonating structures as they involve the formation of the chemical bonds through single sigma bond.

4 0

4 years ago