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Fofino [41]
3 years ago
6

HELP QUICK!!!!!! How many valence electrons do the atoms in Group 13 have?

Chemistry
2 answers:
Andru [333]3 years ago
4 0

Answer:

The answer is 3 valance electrons.

Explanation:

Hope this helped Mark BRAINLIEST!!!

Keith_Richards [23]3 years ago
4 0

Answer:

3 valence electrons

Explanation:

The atoms in group 13 have three valence electrons.

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What is the category name of these each:
Scorpion4ik [409]

Answer:

There are seven main taxonomic ranks: kingdom, phylum or division, class, order, family, genus, species. In addition, domain (proposed by Carl Woese) is now widely used as a fundamental rank, although it is not mentioned in any of the nomenclature codes, and is a synonym for dominion (lat.

Explanation:

4 0
3 years ago
If I leave 750 mL of a 0.40 M sodium chloride solution uncovered on a windowsill
mel-nik [20]

Answer:

B. 0.5 molar

Explanation:

Given data:

Initial concentration = 0.40 M

Initial volume = 750 mL

Final volume =750  -  150 mL = 600 mL

Final concentration = ?

Solution:

Molarity is the number of moles of solutes in litter of solvent. In given problem it is stated that when the solution is uncovered solvent evaporate it means molarity is changed. we can calculate the new molarity with the following formula.

C₁V₁ = C₂V₂

C₁ = initial concentration

V₁ = initial volume

C₂ = final concentration

V₂ = final volume

Now we will put the values in formula.

C₁V₁ = C₂V₂

0.40 M × 750 mL = C₂ × 600 mL

300 M.mL / 600 mL = C₂

0.5 M = C₂

5 0
3 years ago
In the PhET simulation window, click the radio button labeled Mystery in the Blocks menu on the right-hand side of the screen. U
Yuliya22 [10]

Answer:

B, D, E, C, A

Explanation:

We have 5 blocks with their respective masses and volumes.

Block            Mass            Volume

  A                65.14 kg       103.38 L

  B                0.64 kg         100.64 L

  C                4.08 kg         104.08 L

  D                3.10 kg          103.10 L

  E                 3.53 kg         101.00 L

The density (ρ) is an intensive property resulting from dividing the mass (m) by the volume (V), that is, ρ = m / V

ρA = 65.14 kg / 103.38 L = 0.6301 kg/L

ρB = 0.64 kg / 100.64 L = 0.0064 kg/L

ρC = 4.08 kg / 104.08 L = 0.0392 kg/L

ρD = 3.10 kg / 103.10 L = 0.0301 kg/L

ρE = 3.53 kg / 101.00 L = 0.0350 kg/L

The order from least dense to most dense is B, D, E, C, A

4 0
3 years ago
An element identity is defined by its number of
Marianna [84]

Answer:

Correct answer is A) Protons

Explanation:

I got it right on my test.

Can i get brainlyest

3 0
3 years ago
How will fragmentation affect the mass spectrum of hydrogen chloride?
Dima020 [189]
It depends ..........................................


7 0
3 years ago
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