What are reactions?

What are reactions?
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Slide 1: Tekstslide
ChemistryLower Secondary (Key Stage 3)

In deze les zitten 19 slides, met interactieve quizzen en tekstslides.

Onderdelen in deze les

What are reactions?

Slide 1 - Tekstslide

Slide 2 - Tekstslide

Slide 3 - Tekstslide

Slide 4 - Tekstslide

Name the reactant(s):
A
Nitrogen
B
Hydrogen
C
Nitrogen + Hydrogen
D
Ammonia

Slide 5 - Quizvraag

Sodium hydroxide is a...
A
Reactant
B
Product
C
None of the above
D
Element

Slide 6 - Quizvraag

How many products are there?
A
1
B
2
C
3
D
0

Slide 7 - Quizvraag

Water is a....
A
Reactant
B
Product

Slide 8 - Quizvraag

Lithium nitrate is a...
A
Reactant
B
Product

Slide 9 - Quizvraag

How many products are there?
A
1
B
2
C
3
D
4

Slide 10 - Quizvraag

Slide 11 - Tekstslide

Which reaction(s) have 2 reactants and 2 products?

Slide 12 - Open vraag

Which reaction(s) makes 1 product from 2 reactants?

Slide 13 - Open vraag

Slide 14 - Tekstslide

Write the chemical equation for the reaction of hydrogen and oxygen which produces water.
+
Hydrogen
Oxygen
Water

Slide 15 - Sleepvraag

Sam mixed together some eggs, milk and flour. When he heated them in a large pan they reacted to form a big pancake!
+
+
Eggs
Milk
Flour
Pancake

Slide 16 - Sleepvraag

When Katerina dropped a lump of magnesium into a test tube of hydrochloric acid, the chemical magnesium chloride was formed. Katerina also noticed hydrogen gas being formed.
+
+
Magnesium
Hydrochloric acid
Magnesium chloride
Hydrogen

Slide 17 - Sleepvraag

Shona was learning about photosynthesis. She looked on the internet and found that in this process, plants take in carbon dioxide gas from the air and water from the ground. Using energy from the sun they can turn these chemicals into a kind of sugar called glucose and the gas oxygen.
+
+
Oxygen
Carbon dioxide
Water
Glucose

Slide 18 - Sleepvraag

Your turn: In your book, write the word equation for each reaction.
1. A reaction between sulfur and oxygen occurs to form sulfur dioxide.


2. When you burn magnesium in the presence of oxygen gas you form magnesium oxide. 


3. Table salt (sodium chloride) and water are the products of a reaction between hydrochloric acid and sodium hydroxide.

Slide 19 - Tekstslide