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
nekit [7.7K]
2 years ago
10

Potassium chlorate decomposes to form potassium chloride and oxygen according to the following

Chemistry
1 answer:
Tresset [83]2 years ago
8 0

Answer:

O 392 g

Explanation:

39.2 grams of oxygen (O2) can be produced.

You might be interested in
Which property of water causes water drops to bead on a freshly waxed car?
astraxan [27]

Answer:

Cohesive forces are greater than adhesive forces  

Step-by-step explanation:

The attractive forces between water molecules and the wax on a freshly-waxed car (adhesive forces) are quite weak.

However, there are strong attractive forces (cohesive forces) between water molecules.

The water molecules are only weakly attracted to the wax, so the cohesive forces pull the water molecules together to form beads .

3 0
3 years ago
A 0.539 g sample of a metal, M, reacts completely with sulfuric acid according to the reaction M(s)+H2SO4(aq)⟶MSO4(aq)+H2(g) A v
Charra [1.4K]

Answer:

The molar mass of the metal is 54.9 g/mol.

Explanation:

When we work with gases collected over water, the total pressure (atmospheric pressure) is equal to the sum of the vapor pressure of water and the pressure of the gas.

Patm = Pwater + PH₂

PH₂ = Patm - Pwater = 1.0079 bar - 0.03167 bar = 0.9762 bar

The pressure of H₂ is:

0.9762bar.\frac{1atm}{1.013bar} =0.9637atm

The absolute temperature is:

K = °C + 273 = 25°C + 273 = 298 K

We can calculate the moles of H₂ using the ideal gas equation.

P.V=n.R.T\\n=\frac{P.V}{R.T} =\frac{0.9637atm \times 0.249L }{(0.08206atm.L/mol.K)\times298K} =9.81 \times 10^{-3} mol

Let's consider the following balanced equation.

M(s) + H₂SO₄(aq) ⟶ MSO₄(aq) + H₂(g)

The molar ratio of M:H₂ is 1:1. So, 9.81  × 10⁻³ moles of M reacted. The molar mass of the metal is:

\frac{0.539g}{9.81 \times 10^{-3} mol} =54.9g/mol

4 0
3 years ago
FIRST ANSWER = BRAINLIEST
STALIN [3.7K]

A_{r} = 24.3

The average atomic mass of X is the <em>weighted average</em> of the atomic masses of its isotopes.  

We multiply the atomic mass of each isotope by a number representing its <em>relative importance</em> (i.e., its % abundance).  

Thus,  

0.790 × 24 u = 18.96 u

0.100 × 25 u =   2.50 u

0.110 × 26 u =    <u>2.86 u</u>  

       TOTAL =  24.3   u

∴ The relative atomic mass of X is 24.3.


5 0
3 years ago
A 2.0-liter volume of hydrogen gas combined with 1.0 liter of oxygen gas to produce 2.0 liters of water vapor. Does oxygen uderg
lidiya [134]
Oxygen undergoes a chemical change
8 0
3 years ago
What is the answer and why
mario62 [17]
Nuclear power plant because that is a fission reaction and fusion would melt the power plant
4 0
3 years ago
Read 2 more answers
Other questions:
  • Express your answer using two significant figures.<br><br><br> 2.7 cm3 = m3<br><br> 2.0 mm3= m3
    5·1 answer
  • A student collected the above data for this experiment. What error did he make? Explain.
    7·2 answers
  • In a convection current, what causes the molten rock to move from the bottom of the mantle to the top of the mantle?
    15·1 answer
  • Which is a good example of a contact force? A. protons in the nucleus of an atom B. a ball falling down after it's thrown up int
    6·1 answer
  • Mr. Romeo wants to make a solution of NaOH. He measures out 85.66 grams and puts it into 7 liters.
    8·1 answer
  • Explain and Describe the ingredients to create a storm and what factors determine how small or large it will be?
    11·1 answer
  • If the radius of the sun is 7.01×105 km, what is the volume of the sun in cm3?
    15·1 answer
  • How many molecules and atoms in 6 moles of P203?
    9·1 answer
  • Calculate how many moles of water molecules were produced in the combustion of ethanol in oxygen.
    6·1 answer
  • Can you help give examples of elements, compounds, and mixtures? My friend is having trouble with it.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!