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
malfutka [58]
3 years ago
8

Which element begins with the ketter K?

Chemistry
1 answer:
torisob [31]3 years ago
4 0

Krypton is the only element that begins with the letter K.

You might be interested in
A solution is made by dissolving 0.565 g of potassium nitrate in enough water to make up 250. mL of solution. What is the molari
aalyn [17]
<h3>Molar mass of Potassium Nitrate:-</h3>

\\ \large\sf\longmapsto KNO_3

\\ \large\sf\longmapsto 39u+14u+3(16u)

\\ \large\sf\longmapsto 53u+48u

\\ \large\sf\longmapsto 101u

\\ \large\sf\longmapsto 101g/mol

Now

\boxed{\sf No\:of\:moles=\dfrac{Given\:mass}{Molar\:mass}}

\\ \large\sf\longmapsto No\:of\:moles=\dfrac{0.565}{101}

\\ \large\sf\longmapsto No\:of\:moles=0.005mol

We know

\boxed{\sf Molarity=\dfrac{Moles\:of\:solute}{Vol\:of\:Solution\:in\:L}}

\\ \large\sf\longmapsto Molarity=\dfrac{0.005}{\dfrac{250}{1000}L}

\\ \large\sf\longmapsto Molarity=\dfrac{0.005}{0.250}

\\ \large\sf\longmapsto Molarity=0.02M

8 0
3 years ago
Read 2 more answers
What are the possible orbitals for n = 3?
Tanzania [10]

Answer:The n = 3 shell, for example, contains three subshells: the 3s, 3p, and 3d orbitals. There is only one orbital in the n = 1 shell because there is only one way in which a sphere can be oriented in space.

Explanation:hope this helps:D

3 0
3 years ago
3. If 45.0 mL of 0.560 M KOH are needed to neutralize 125 mL of HCl of unknown concentration, what is
vlada-n [284]

Answer:

Molarity = 0.202 M

7.36 g/L HCl

Explanation:

KOH                        +                  HCl ----> KCl  +  H2O

1 mol                                           1 mol

0.560mol/L *0.045L                 x mol/L*0.125L

0.560mol/L *0.045L    =   x mol/L*0.125L

x = 0.560mol/L *0.045L  /0.125L= 0.2016 mol/L≈ 0.202 mol/L=0.202M HCl

M(HCl) = 1.0+35.5 = 36.5 g/mol

0.2016 mol/L*36.5 g/mol ≈ 7.36 g/L HCl

6 0
3 years ago
Please help! What is the molarity of 450 mL of solution containing 15 g NaCl?
siniylev [52]

Answer:

The answer to your question is 0.6 M

Explanation:

Data

Molarity = ?

Volume = 450 ml

mass of NaCl = 15 g

Process

1.- Calculate the molar mass of NaCl

NaCl = 23 + 35.5 = 58.5 g

2.- Calculate the number of moles of NaCl

             58.5 g of NaCl ------------ 1mol

                 15 g of NaCl ------------   x

                         x = (15 x 1)/58.5

                         x = 0.26 moles

3.- Calculate the molarity

Molarity = moles/volume

-Substitutiion

Molarity = 0.26/0.45l

-Result

Molarity = 0.6 M

7 0
4 years ago
Which soil would be the best for growing plants?
Leokris [45]

Honestly, its based on your preference but the best recommended one would be loam. I use loam too, and it is really good for growing the plants.

:)

7 0
3 years ago
Other questions:
  • Given that the molar mass of H2O is 18.02 g/mol, how many liters of propane are required at STP to produce 75 g of H2O from this
    12·1 answer
  • When 412.5 g of calcium carbonate react with 521.9 g of aluminum fluoride, how many
    8·1 answer
  • Which cells carry nutrients from food to the rest of the cells in the body?​
    6·2 answers
  • For the reaction 2Fe + O2 = 2FeO, how many grams of iron oxide are produced from 8.00 mol of iron? when o2 is an excess
    8·1 answer
  • How much of your blood is made of Plasma? A)10% <br> B)25% c)40% d)50%
    14·1 answer
  • An object is moving north at a constant speed. A force of 5 N begins to push the object east at the same moment that a
    10·2 answers
  • 1. Know what elements make up water and in what proportions
    9·1 answer
  • All atoms of oxygen have the same mass number. True or False
    10·2 answers
  • Does pure water conduct electricity? if not, what can we do to make it conducting?​
    5·1 answer
  • Which characteristics of flower petals help an angiosperm reproduce? (Select all that apply.)
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!