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
Margaret [11]
3 years ago
8

What is the percent composition of K2O?

Chemistry
2 answers:
AlladinOne [14]3 years ago
7 0
Element Symbol Mass Percent
Oxygen O 16.985%
Potassium K 83.015%
Strike441 [17]3 years ago
3 0
Oxygen O 16.985%
Potassium K 83.015%
You might be interested in
I need help on either question you can answer. Thank you god bless
Stels [109]
<h3>Further explanation</h3>

1.Atomic Number (Z) = Mass Number (A) - Number of Neutrons

neutrons = mass number-atomic number

Atomic mass Cl-37= 17

Mass number Cl-37=37

Neutrons = 37-17=20

2. Mass atom X = mass isotope 1 . % + mass isotope 2.%...

\tt atomic~mass~X=0.0224\times 88+0.7832\times 90+0.1944\times 91=90.1

3. The energy in one photon can be formulated as

\large{\boxed{\bold{E\:=\:h\:.\:f}}}

f = c / λ, so :

\tt E\approx f\approx \dfrac{1}{\lambda}

Energy is directly proportional to frequency and inversely proportional to the wavelength

So, as the frequency of photon increases, the energy of photon increases

4. Based on answer number 3 :

A. The wavelength becomes longer, and the energy decreases

7 0
2 years ago
6. For each of the following sets of atoms, rank the atoms from smallest to largest atomic radius.
Alex787 [66]

Answer:

a (F < C < Li)

b (Li < Na < K)

c (Ge < P < O)

d (C < N < Al)

e (Ga < Cl < Al)

4 0
2 years ago
What's the balanced chemical equation of magnesium reacting with silver nitrate to produce silver and magnesium nitrate?
Strike441 [17]

The balanced equation is Mg + 2AgNO₃ ⟶ Mg(NO₃)₂ + 2Ag

Step 1. Write the <em>unbalanced equation </em>

Mg + AgNO₃ ⟶ Mg(NO₃)₂ + Ag

Step 2. Start with the<em> most complicated-looking formula</em> [Mg(NO₃)₂] and balance its atoms.

Mg: Already balanced —1 atom each side.

N: We need 2 N on the left. Put a 2 in front of AgNO₃.

1Mg + 2AgNO₃ ⟶ 1Mg(NO₃)₂ + Ag

O: Already balanced —6 atom6 each side.

Step 3: Balance <em>Ag</em>

We have 2Ag on the left. We need 2Ag on the right.

1Mg + 2AgNO₃ ⟶ 1Mg(NO₃)₂ + 2Ag

4 0
3 years ago
Choose the term that best fits the following definition: the liquid or gas that carries the sample across the solid support.
iren [92.7K]

The correct answer is option B.

The liquid or gas that carries the sample across the solid support is called mobile phase.

In chromatography, there are two phases: mobile phase and solid phase.

The mobile phase can be either in gas form or liquid form.

While performing the chromatography technique, mobile phase moves over the stationary phase and its components adsorb to the stationary phase and set apart from each other at different rates.

In general, mobile phase refers to the solvent phase that slides over the stationary phase through the chromatography paper.

on the other hand, stationary phase is motionless.

If you need to learn more about gas click here:

brainly.com/question/28010290

#SPJ4

8 0
1 year ago
How does the force of gravity on Jupiter compare to the force of gravity on Earth?
iogann1982 [59]

Jupiter has greater gravitational pull than earth, about 2.4 time greater than that of earth. This means that a person weighing 100 pound on earth will weigh 240 pounds on Jupiter.

Jupiter is the largest planet in the solar system. It is so large that all other planets would comfortably fit inside it. It is over 1000 times bigger than the earth.

Jupiter is the fifth planet from the sun and rotates faster than any other  planet. A day in Jupiter is about 10 hours long.



7 0
2 years ago
Other questions:
  • Object A: has a mass of 2g a volume of .5L
    5·1 answer
  • Chlorine gas (CI2) is a(n)<br> A.) mixture.<br> B.) element.<br> C.) molecule.<br> D.) compound.
    5·2 answers
  • What is heterogenous mixture
    10·1 answer
  • A boat Pulls a 60Kg water-skier with a force of 105 N, What is the skier’s acceleration?
    9·1 answer
  • This is when water freezes, expands, pushing the rock apart slowly over a period<br> of time.
    10·1 answer
  • Why does an object in motion stay in motion unless acted on by an unbalanced force?
    11·2 answers
  • Which describes the number of protons in the atom of a particular element
    6·1 answer
  • What is the mole fraction of NaBr in
    6·1 answer
  • Identify the pair in whic 1 the formula does not match the name
    14·2 answers
  • A 2 m3 wooden block has a mass of 10 kg. What is the density of the block?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!