All categories

2 years ago

Which element has a higher first ionization energy than chlorine (Cl)?

Chemistry

2 answers:

4vir4ik [10]2 years ago

6 0

Answer:

Argon

Explanation:

It has more electron than chlorine

erastova [34]2 years ago

5 0

Argon- because if you look at the periodic table- as you move left from right the IE will increase

You might be interested in

3.0 x 108 m/s is the

Veseljchak [2.6K]

Answer:

Speed of light

Explanation:

The value 3.0 x 10⁸m/s is taken as the speed of light.

It is a constant.

It implies that light travels a distance of 3 x 10⁸ in just one second.
This value is for the speed of light in a vacuum when there are not particles obstructing its movement.
The speed of electromagnetic radiations in free space is also taken as the speed of light.

4 0

2 years ago

Suppose you have a dozen carbon atoms, a dozen gold atoms, and a dozen iron atoms. Even though you have the same number of each,

mixer [17]

Answer:

By weight they have the same mass, but the number of atoms is different

Explanation:

3 0

2 years ago

Read 2 more answers

This is the chemical formula for talc Mg3(Si2O5)2(OH)2(the main ingredient in talcum powder):

Elena-2011 [213]

Answer:

0.022 mol O

Explanation:

Mg3(Si2O5)2(OH)2

We can see that 1 mol of this substance has 3 mol of Mg.

Oxygen altogether is 5*2 (from (Si2O5)2) + 2(from(OH)2) = 10 +2 = 12

So, 1 mol of this substance has 12 mol oxygen.

So, 1 mol of this substance contains 3 mol Mg and 12 mol O, or

ratio Mg : O = 3 : 12 = 1 : 4

1 mol Mg ----- 4 mol O

0.055 mol Mg ---x mol O

x = 0.055*4/1 = 0.220 mol O

8 0

2 years ago

Pls help if you only know the correct answer! Thanks!!

Likurg_2 [28]

Answer:

1. H=2, O=1

2. H=4, O=2

3. C=1, O=1

a. reactants C=1, O=2

b. products C=1, O=2

a. reactants H=4, O=2

b. products H=4, O=2

a. reactants C=1, O=1, H=4

b. products C=1, O=1, H=4

4 0

1 year ago

) Calculate the molarity of a solution prepared by dissolving 117 g of sodium chloride (NaCl) in enough water to make 2.7 liters

Andrej [43]

The Molarity of the solution is given by:
$Molarity = \frac{moles-of-solute}{liters-of-solution}$ --- (A)

But NaCl, which is a solute, is given in grams.
Therefore, first, we need to convert grams into moles.

Molecular weight of NaCl = 58.44 grams/mole.

So,
117 grams * (moles/ 58.44 grams) = 2.00 moles of NaCl

Now that we have moles of NaCl, plug in the values in (A):
(A) => Molarity = (2 / 2.7 ) = 0.741 moles/litre

The correct answer is: 0.741 moles/litre = Molarity

8 0

2 years ago