1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Irina18 [472]
3 years ago
9

How does electronic configuration of atoms change in the period with increase in the atomic number?​

Chemistry
1 answer:
valentina_108 [34]3 years ago
6 0

Answer:

Hi

Explanation:

Hi hi hi hi hi hi hi hi

Hope ur havin a good time

You might be interested in
I will mark brainlist please help
Lostsunrise [7]

Answer: 20) 2365 g

21) 22.39 grams.

22) 29.99 g

Explanation: 20) molarity is the no of moles of solute per unit volume.

We can calculate amount of CaCl2 required to prepare 0.1 M CaCl2 1000 ml solution.

we know that to prepare one ltr of 1 M solution of CaCl2 111 g required

Now consider x gram will require to prepare to

so that comparing above both condition

1000ml ×1M×X g=1000ml×0.1M×111g

X= 11.1 gram

X= 11.1 g of CaCl2

Hence 11.1 g of CaCl2 would be dissolved in 1.0L of a 0.100 M solution of CaCl2

21) How many moles of CaCl₂ in that solution?

;

;

.

What's the mass of that 0.20172 moles of CaCl₂?

Molar mass from a modern periodic table:

Ca- 40.078;

Cl- 35.45.

Molar mass of CaCl₂:

.

Mass of that 0.20172 moles of CaCl₂:

22) its a 3.0m solution so 1 litre of solution contains 3 moles of NaOH, 250ml of solution contains 0.25x39.9971 g/mol, so 250ml of this solution contains 0.75x39.9971=29.99g, or if you round it up 30.0g

7 0
3 years ago
QUICK HELP!!!!!
Rzqust [24]
That is a chemical change
8 0
3 years ago
If a body travel 60m on a straight line in 20 seconds. Find its velocity.​
g100num [7]

Answer:

v = distance/time = 60m/20s = 3 m/s

4 0
3 years ago
An alkyne with the molecular formula C6H10 was treated with ozone followed by water to produce only one type of carboxylic acid.
likoan [24]

Answer:

The first step of this ozonolysis produces an acid anhydrous with on hydrolysis gives the same Carboxylic acid

Explanation:

Please find attached the reaction steps

6 0
3 years ago
How many atoms of phosphorus are in 7.00 mol of copper(II) phosphate?
Rama09 [41]

<u>Answer:</u> The number of phosphorus atoms in given amount of copper(II) phosphate is 8.431\times 10^{24}

<u>Explanation:</u>

We are given:

Moles of copper(II) phosphate Cu_3(PO_4)_2 = 7.00 mol

1 mole of copper(II) phosphate contains 3 moles of copper, 2 moles of phosphorus and 8 moles of oxygen atoms

Moles of phosphorus in copper(II) phosphate = (2\times 7.00mol

According to the mole concept:

1 mole of a compound contains 6.022\times 10^{23} number of particles

So, 7.00 moles of copper(II) phosphate will contain = (2\times 7\times 6.022\times 10^{23}=8.431\times 10^{24} number of phosphorus atoms.

Hence, the number of phosphorus atoms in given amount of copper(II) phosphate is 8.431\times 10^{24}

3 0
3 years ago
Other questions:
  • Lewis dot structure for N3-
    12·2 answers
  • For the quantum number lower case L = 2, how many possible values are there for the quantum number m subscript l? 2 3 5 6
    9·1 answer
  • Which balanced equation represents a single replacement reaction?
    13·1 answer
  • What is the percent composition of NaCl? Show all work please
    5·1 answer
  • The mole concept will most likely be used in
    10·1 answer
  • Why does earth look blue from space
    15·1 answer
  • What is the formula for the ionic compound made up of the ions Cd+3 and SO4-2?
    13·1 answer
  • Molality is a way to express the concentration of a solution that represents the number of moles of
    10·1 answer
  • Look at the following elements and tell what information you can deduce from the given data.
    7·1 answer
  • Plsss help i’ll give brainlist
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!