Term
| Write down the symbol of the element sodium. |
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Definition
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Term
| Write down the name of the element with the symbol F. |
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Definition
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Term
| Write down the symbol of the element Helium. |
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Definition
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Term
| Write down the symbol of the element Hydrogen. |
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Definition
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Term
| Write down the name of the element with the symbol Mg. |
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Definition
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Term
| Write a set of steps of how to determine if a liquid is an acid or a base. |
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Definition
| 1) Put a few drops of universal indicator into a liquid. 2) compare the colour that the liquid changed to to the universal indicator chart to determine the pH of the liquid. 3) If the pH > 7, it's a base. If the pH is < 7 it's an acid. |
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Term
| Give an example of a neutral liquid. |
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Definition
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Term
| State a place an acid is used and what the acid is used for. |
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Definition
| in your stomach; to break down food |
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Term
| State a place a base is used and what the base is used for. |
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Definition
| in soap, to clean bacteria off anything |
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Term
| Describe the formation of acid rain. |
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Definition
| N and S particle is the air from the burning of fossil fuels react to form acids in the atmosphere. The acids enter rain clouds and the rain becomes acid. |
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Term
| Explain why governments and companies should try to reduce acid rain. |
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Definition
| Acid rain destroys ecosystems by changing the pH of the water. It can kill trees, fish in lakes and amphibians. |
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Term
| Describe the effects of acid rain on infrastructure such as buildings and roads. |
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Definition
| Acid rain causes concrete and other substances to break apart faster. |
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Term
| Write down three examples of acids or acidic liquids. |
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Definition
| vinegar, Coca-cola, orange juice, stomach acid, battery acid |
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Term
| Write down three examples of bases or basic liquids. |
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Definition
| shampoo, toothpaste, soap, |
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Term
| All particles are always moving is one statement from Kinetic Particle Theory. State another part of Kinetic Particle Theory. |
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Definition
| Particles move faster as their temperature increases. |
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Term
| Diffusion is the movement of particles from high concentration to low concentration. Give an example of diffusion. |
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Definition
| (There are many examples). Dye is dropped in a glass of water. Over time it spreads out to be evenly spread throughout the water. |
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Term
| You put some sugar in your tea and it sits at the bottom of the cup without dissolving. You wait. Describe two ways you could make the sugar dissolve faster. |
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Definition
| 1) You could heat up the tea. 2) You could stir the tea using a stir stick. 3) If the first two don't work, you could add more hot tea. |
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Term
| You test the pH of your swimming pool, and the pH of the water is 8.0. Describe one thing you could do to make the water neutral. |
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Definition
| 1) Add acid to the pool. OR 2) Add more water to the pool |
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Term
| Write down the symbol for the element phosphorus. |
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Definition
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Term
| Write down the name of the element O. |
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Definition
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Term
| Write down the name of the element Cl. |
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Definition
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Term
| Write down the name of the elment K. |
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Definition
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Term
| A gas is heated up to extremely high temperatures. What state of matter might it change to? |
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Definition
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Term
| The particles in a solid are close together and do not move much. Describe at least two things that happen to the particles of a solid changes to a liquid. |
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Definition
| 1) The temperature of the particles increases. 2) The particles move around each other, but stay close together |
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Term
| 1L of a liquid with a pH of 4 is mixed with a 1L of a liquid with a pH of 11. a) Write down the type of reaction that occurs when the liquids are mixed. b) Predict the pH of the resulting liquid and explain your prediction. c) Is the predicted solution an acid or a base? |
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Definition
| a) neutralization b) Predict a pH of 8-9, because the base is stronger than the acid and they are mixed with equal volumes. c) It's a base. |
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