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aleksandr82 [10.1K]
3 years ago
6

How many valence electrons are in Lead(IV)

Chemistry
1 answer:
Ksenya-84 [330]3 years ago
7 0

Answer:

It has 4 valence electrons

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In the Bohr model of the hydrogen atom, the energy required to excite an electron from n = 2 to n = 3 is _______________ the ene
yawa3891 [41]

Answer:

greater than

Explanation:

4 0
3 years ago
Why is it impossible for a solution to become both more basic and more acidic at the same time?
elena55 [62]

An increase in H+ concentration will decrease OH- concentration is the

reason why it's impossible.

<h3>What is an Acidic and Basic compound?</h3>

An acidic compound has the presence of H+ ions in them while basic

compounds have the presence of OH- ions.

In a solution , as the number of Hydrogen ions increases, it leds to a

corresponding decrease in the Hydroxide ions which is the reason why

they can't coexist at the same time.

Read more about Acidic and basic compounds here brainly.com/question/4046668

4 0
2 years ago
Read 2 more answers
According to the excerpt from Nature News above, how are the processes in the water
aksik [14]

Answer:

yes it was true ang it's in the book of mythology

6 0
2 years ago
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What temperature kelvin would .97mol of gas be to occupy 26L at 751.2mmHg?
crimeas [40]

Answer: 322.56 Kelvin

Explanation:

Use the Ideal Gas Law

PV=nRT

R is the gas constant

T is the temperature in Kelvins

P is the pressure in atmospheres

V is the volume in liters

n is the number of moles of gas

First, the mm of mercury need to be converted to atmospheres using the conversion factor 1atm = 760 torr.

751.2mmHg (torr) =0.988atm

Now plug everything in

(0.988)(26)=(0.97)(0.0821)T\\T=322.56K

5 0
3 years ago
Determine the mass in grams of 0.750 mol of francium.
jok3333 [9.3K]

Answer:

Mass =  167.25 g

Explanation:

Given data:

Number of moles of francium = 0.750 mol

Mass of francium = ?

Solution:

Formula:

Number of moles = mass/ molar mass

Mass = number of moles × molar mass

Molar mass of francium = 223 g/mol

Mass =  0.750 mol × 223 g/mol

Mass =  167.25 g

5 0
2 years ago
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