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Physical and chemical changes
V&V Books Vicens Vives Organización
- 1 lo usan
- 138 visitas
Khan Academy lesson on the differences between physical and chemical changes.
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Balancing Chemical Equations
V&V Books Vicens Vives Organización
- 1 lo usan
- 134 visitas
How do you know if a chemical equation is balanced? What can you change to balance an equation? Play a game to test your ideas!
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Balancing Chemical Equations Calculator
V&V Books Vicens Vives Organización
- 318 visitas
An online balancing chemical equations calculator provides a balanced equation, structure, and equilibrium constant with chemical names and formulas.
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Classify. Physical and Chemical stimuli
EduBook Organización
- 1891 visitas
Indicate whether these are physical or chemical stimuli: Smell of vinegar. The temperature of water. The amount of carbon dioxide in the blood. The taste of salt. The feel of clothing. Light and the Sun.
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Match. Types of chemical reaction
EduBook Organización
- 1732 visitas
Match the words in the list with the correct type of chemical reaction: coal ➝ bread ➝ oxygen ➝ yeast ➝ wine ➝ fuel ➝ potato ➝ iron ➝ yoghurt ➝ a cut apple ➝
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Is this a CHEMICAL REACTION?
V&V Books Vicens Vives Organización
- 287 visitas
What is the difference between a chemical change and a physical change?
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The chemical composition of living things
EduBook Organización
- 1 lo usan
- 3448 visitas
2.1. Bioelements Bioelements are the chemical elements that form part of all living matter. There are around 70 bioelements, although not all of them are present in all organisms. Bioelements can be…
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The periodic table and chemical formulas
EduBook Organización
- 3392 visitas
5.1. The symbols of chemical elements Each one of the 118 known chemical elements has a name and is represented by a chemical symbol. These symbols consist of one or two letters (the first a capital…
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Observe. The periodic table and chemical formulas
EduBook Organización
- 3291 visitas
Look at the photos and answer the questions: Look at figures 1-3. Say which elements are present in each compound and how many atoms there are of each. Which of these compounds is used as fuel?
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Check. The periodic table and chemical formulas
EduBook Organización
- 2918 visitas
Write down and learn the names and symbols of the first 20 chemical elements in the periodic table. Test a classmate.
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