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
s344n2d4d5 [400]
2 years ago
5

express in word equation and chemical equation of the chemical reaction when potassium chlorate is heated.​

Chemistry
1 answer:
IgorLugansk [536]2 years ago
8 0

Answer:

Word equation: <u>Potassium chlorate → Potassium chloride + Oxygen</u>

Chemical equation: <u>KClO₃ → KCl + O₂</u>

Explanation:

<em>This is decomposition reaction so there will only be one reactant, which is potassium chlorate.</em>

The chemical equation will be:

KClO₃ → KCl + O₂

The balanced equation would be:

2KClO₃ → 2KCl + 3O₂

The word equation will be:

Potassium chlorate → Potassium chloride + Oxygen

You might be interested in
John dalton postulated several statements about the atom. which statement did he NOT state?
algol [13]

Answer:

The atom is divisible particle and can be subdivided into smaller particles proton, neutron and electrons was not stated by John dalton.

Explanation:

The postulate of Dalton's atomic theory  that atom is indivisible particle and can not be subdivided into smaller particles was later changed because atom can be divided into neutrons, protons and electrons.

Electron:

The electron is subatomic particle that revolve around outside the nucleus and has negligible mass. It has a negative charge.

Symbol= e⁻

Mass= 9.10938356×10⁻³¹ Kg

It was discovered by j. j. Thomson in 1897 during the study of cathode ray properties.

Proton and neutron:

While neutron and proton are present inside the nucleus. Proton has positive charge while neutron is electrically neutral. Proton is discovered by Rutherford while neutron is discovered by James Chadwick in 1932.

Symbol of proton= P⁺

Symbol of neutron= n⁰  

Mass of proton=1.672623×10⁻²⁷ Kg

Mass of neutron=1.674929×10⁻²⁷ Kg

All these three subatomic particles construct an atom. A neutral atom have equal number of proton and electron.

7 0
3 years ago
A certain drug has a half-life in the body of 3.5h. Suppose a patient takes one 200.Mg pill at :500PM and another identical pill
tekilochka [14]

Answer:

The amount of drug left in his body at 7:00 pm is 315.7 mg.

Explanation:

First, we need to find the amount of drug in the body at 90 min by using the exponential decay equation:

N_{t} = N_{0}e^{-\lambda t}

Where:

λ: is the decay constant = ln(2)/t_{1/2}

t_{1/2}: is the half-life of the drug = 3.5 h

N(t): is the quantity of the drug at time t

N₀: is the initial quantity

After 90 min and before he takes the other 200 mg pill, we have:

N_{t} = 200e^{-\frac{ln(2)}{3.5 h}*90 min*\frac{1 h}{60 min}} = 148.6 mg

Now, at 7:00 pm we have:

t = 7:00 pm - (5:00 pm + 90 min) = 30 min

N_{t} = (200 + 148.6)e^{-\frac{ln(2)}{3.5 h}*30 min*\frac{1 h}{60 min}} = 315.7 mg    

Therefore, the amount of drug left in his body at 7:00 pm is 315.7 mg (from an initial amount of 400 mg).

I hope it helps you!

3 0
2 years ago
What volume will 50.2 grams of co2 (g) occupy at stp?
Genrish500 [490]
Number of moles of CO2 =
Mass /Ar
= 50.2 / (12 + 32)
1.14 mols

For every 1 mol of gas, there will be
24000 cm^3 of gas

Vol. = 1.14 x 24 dm^3
= 27.36 dm^3
8 0
3 years ago
PLEASE HELP ME PLEASE I'M BEGGING YOU
Anit [1.1K]
The answer is B charged particles
4 0
3 years ago
Read 2 more answers
Which organisms in soil helps relieve element so they can be recycled
Rudiy27

Answer:

Bacteria are also involved in many processes that are indispensable for our life on Earth. Many of these processes have to do with the recycling (reuse) of chemical elements that have been here since the formation of the planet

Explanation:

I hope it will help you

3 0
3 years ago
Other questions:
  • What state of matter is flubber is it a solid,liquid,or gos?
    12·1 answer
  • A gas with a volume of 425 ml at a pressure of 205 kpa is allowed to expand to a volume of 1209 ml, with no change in temperatur
    5·1 answer
  • The student is now told that the four solids, in no particular order, are calcium bromide (CaBr2), sugar (C6H12O6), butanoic aci
    11·1 answer
  • Which ocean surrounds Antarctica at the South Pole?
    10·2 answers
  • What is the molecular equation cuso4(aq) and sr(no3)2(aq)
    10·1 answer
  • Is it possible to have more atoms on the product side of a chemical reaction than there are on the reactant side? Explain why or
    13·1 answer
  • The Earth's Layers
    6·2 answers
  • Are materials that flow.<br> Fill in the blank
    14·1 answer
  • ______ contributes to the nitrogen cycle by removing nitrogen from the air and converting it into a form that is usable by plant
    13·1 answer
  • What type of chemical reaction is the reaction below?Fe2O3 + 3 Mg --&gt; 2 Fe + 3 MgO
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!