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Leona [35]
4 years ago
12

What role does potassium iodide play in generating oxygen

Chemistry
1 answer:
Zielflug [23.3K]4 years ago
7 0
Potassium iodide will act as the catalyst to decompose hydrogen peroxide into water and oxygen. A catalyst is a substance that participates in a chemical reaction and influences its speed without undergoing permanent change.<span>


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How can you tell the difference between an ionic compound and a molecule?
slamgirl [31]

Explanation:

  • An ionic compound is defined as the compound formed by transfer of electrons from one atom to another.

For example, lithium atom on donating its one valence electron to chlorine atom will result in the formation of an ionic bond and the compound formed is LiCl.

  • A molecule is defined as a substance which can contain either same or different elements.

For example, Cl_{2}, MgSO_{4} etc are molecules.

  • A molecule can contain either a covalent or ionic bond. But an ionic compound will always contain an ionic bond.
7 0
3 years ago
What is the key difference between element and compound
olga nikolaevna [1]

Answer and Explanation:

DIFFERENCE BETWEEN ELEMENT AND COMPOUND :

  • An element is made up of same type of atoms whereas a compound is made up of different type of atoms.
  • A compound can be separated by chemical methods  but an element can not be separated by chemical methods.
  • Example of element is Cu Fe C and example of compound is CO_2\ NO_2 \ NH_3  etc
  • Elements can not be split into different substances but compound can be splited into different substances

3 0
3 years ago
In an experiment, 26.5 g of metal was heated to 98.0°c and then quickly transferred to 150.0 g of water in a calorimeter. the in
allsm [11]
This is a common laboratory experiment called calorimetry which determines the specific heat capacity of the sample metal. 

By the Conservation of Energy,

Energy of Metal = Energy of Water
mCmetalΔT = mCwaterΔT, wherein Cwater = 4.187 J/g·°C
(26.5 g)(Cmetal)(98 - 32.5°C) = (150 g)(4.187 J/g·°C)(32.5 - 20°C)
Solving for Cmetal,
<em>Cmetal = 4.523 J/g·°C</em>
4 0
3 years ago
A child on a high dive has a mass of 40 kilograms. If the high dive is 10 meters in the air, what is the potential energy?
Otrada [13]

Answer:

<h2>3920 Joules</h2>

Explanation:

The potential energy of a body can be found by using the formula

PE = mgh

where

m is the mass

h is the height

g is the acceleration due to gravity which is 9.8 m/s²

From the question we have

PE = 40 × 9.8 × 10

We have the final answer as

<h3>3920 J</h3>

Hope this helps you

4 0
3 years ago
What is the formula for the compound dinitrogen pentoxide? n4o5 n5o4 n4o6 n5o2 n2o5?
STALIN [3.7K]
<span>N2, penta means 5, so 5 oxygens

so with that being said n205</span>
5 0
3 years ago
Read 2 more answers
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