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3 years ago

What is the total number of valence electrons in an atom of phosphorus in the ground state?

Chemistry

2 answers:

qaws [65]3 years ago

3 0

Phosphorus atoms in their ground state have 5 valence electrons.

Luba_88 [7]3 years ago

3 0

Answer:

A neutral Phosphorus Atom has five valence electrons.

Explanation:

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24. H2SO4 has

Eddi Din [679]

Answer:

Explanation:

para sakin letter C ganonn

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3 years ago

What is the best chemical test for alkene?

enyata [817]

Answer:

bromine water

Explanation:

a simple test with bromine water can be used to tell the difference between an alkane and an alkene. an alkene will turn brown bromine water colourless as the bromine reacts with the carbon-carbon double bond.

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4 years ago

The effective nuclear charge for an atom is less than the actual nuclear charge due to

Irina18 [472]

Answer:

A = shielding.

Explanation:

The addition of electron causes the atomic size increase from top to bottom due to increase in atomic number.

As the atomic number increased one more electron is added and because of this electron on more electronic shell is added. Thus the electron become more away from the nucleus as many of other electrons are present in the way from nucleus to the outer electrons.

The hold of nucleus becomes weaker. Although nuclear charge is also increased but at the same time other electrons shield the respective electrons. So effective nuclear charge is weaker than the actual nuclear charge.

Because of this shielding it is easy to remove the electrons or we can say ionization energy decreases.

3 0

4 years ago

WILL GIVE BRANLIEST TO WHOEVER ANSWERS THIS QUESTION>>> How many valence electrons does NaHCo3 have?

nydimaria [60]

Answer:

NaHCO3

Na = 1

H = 1

C = 4

Explanation:

5 0

3 years ago

A chemical company makes ammonia by reacting nitrogen with hydrogen. The company needs to make 70 batches of ammonia for a clien

RSB [31]

Answer:- No, the company would not be able to full fill the order.

Solution:- The balanced equation for the formation of ammonia by the reaction of hydrogen with nitrogen is:

$3H_2+N_2\rightarrow 2NH_3$

We have been given with 22000 grams of nitrogen and 1000 grams of hydrogen. Let's convert grams of each to moles:

moles of nitrogen = $22000g N_2(\frac{1mol}{28g})$

moles of nitrogen = 785.71 mol

moles of hydrogen = $1000g H_2(\frac{1mol}{2g})$

moles of hydrogen = 500 mol

From balanced equation 3 moles of hydrogen react with 1 mol of nitrogen. Let's calculate how many moles of nitrogen would react with 500 mol of hydrogen:

$500mol H_2(\frac{1mol N_2}{3mol H_2})$

= $166.67 mol N_2$

166.67 moles of nitrogen are required and 785.71 moles of it are available. It means nitrogen is in excess and hydrogen is limiting. Product yield depends on limiting reactant. So, let's calculate the amount of ammonia formed from moles of hydrogen as:

$500mol H_2(\frac{2mol NH_3}{3mol H_2})(\frac{17g NH_3}{1mol NH_3})$

= 5666.67g of ammonia

let's convert the grams of ammonia to number of batches as:

$5666.67g NH_3(\frac{1 batch}{175g NH_3})$

= 32 batches

Company needs to make 70 batches of ammonia but from given amounts of hydrogen and nitrogen only 32 batches could be made. It means the company would not be able to full fill the order.

5 0

3 years ago