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3 years ago

What is the difference between polar and non-polar

Chemistry

1 answer:

ExtremeBDS [4]3 years ago

5 0

Answer:

Polar molecules occur when there is an electronegativity difference between the bonded atoms. Nonpolar molecules occur when electrons are shared equal between atoms of a diatomic molecule or when polar bonds in a larger molecule cancel each other out.

Explanation:

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The deliverables produced in the analysis phase provide a general idea of the new system. The process that follows and that prod

saveliy_v [14]

Answer:

Gradual refinement

Explanation:

Gradual refinement is the process whereby the System Development Life Cycle goes through a series of development stages, each stage/phase refining the previous one.

4 0

3 years ago

socratic For the following reaction, 25.6 grams of hydrochloric acid are allowed to react with 52.4 grams of barium hydroxide .

TEA [102]

Answer:

63.7g BaCl₂

Explanation:

Based on the chemical reaction:

2HCl + Ba(OH)₂ → BaCl₂ + 2H₂O

2 moles of HCl reacts per mole of barium hydroxide

To solve this question, we need to convert the moles of each reactant to moles and, using the chemical reaction, find limiting reactant as follows:

Moles Ba(OH)₂ - Molar mass: 171.34g/mol-

52.4g Ba(OH)₂ * (1mol / 171.34g) = 0.306 moles Ba(OH)₂

Moles HCl - Molar mass: 36.46g/mol-

25.6g HCl * (1mol / 36.46g) = 0.702 moles HCl

For a complete reaction of 0.702 moles HCl are required:

0.702 moles HCl * (1mol Ba(OH)₂ / 2mol HCl) = 0.351 moles of Ba(OH)₂

As there are just 0.306 moles, limiting reactant is Ba(OH)₂

That means the maximum amount of BaCl₂ produced is:

0.306 moles Ba(OH)₂ * (1mol BaCl₂ / 1 mol Ba(OH)₂) = 0.306 moles BaCl₂

In mass -Molar mass BaCl₂: 208.23g/mol-

0.306 moles BaCl₂ * (208.23g / mol) = 63.7g BaCl₂

3 0

3 years ago

(a) Red light has a wavelength of roughly 700 nm. What is the wavelength in m? ball park 10.10' (b) What is the wavelength of re

joja [24]

Explanation:

a) Wavelength of red light = 700 nm

1 nanometer = $10^{-9} meter$

Wavelength of red light in meter will be:

$=700 nm=700\times 10^{-9} m=7.00\times 10^{-7} m$

b) Wavelength of red light = $7.00\times 10^{-7} m$

1 meter = 39.3701 inches

Wavelength of red light in inches will be:

$7.00\times 10^{-7} m=7.00\times 10^{-7}\times 39.3701 inches$

$=2.7559\times 10^{-5} inches$

Value of distance given = 90.123 km

1 km = 3280.84 feet

$90.123 km=90.123 \times 3280.84 feet=295,679.1433 feet$

1 foot = 0.1515152 chain

$295,679.1433 feet=295,679.1433\times 0.1515152 chain$

$=44,799.88453 feet\approx 4.48\times 10^4 chains$

Value of distance in chains:

$90.123 km=4.48\times 10^4 chains$

3 0

3 years ago

Can anyone sort these four into the correct banks?

Naddika [18.5K]

Answer:

yes

Explanation:

7 0

3 years ago

____33. When an atom undergoes gamma decay, the atomic number of the element

aleksandrvk [35]

Answer: Because only energy is emitted during gamma decay, the number of protons remains the same. Therefore, an atom does not become a different element during this type of decay. Q: The Figure below shows how helium-3 (He-3) decays by emitting a gamma particle.

6 0

3 years ago

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