Criado por Jim Fellows
quase 11 anos atrás
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Questão | Responda |
What does amphoteric mean? | It means an oxide can react either as an acid or as a base |
What type of solution is formed when a metal oxide is dissolved in water? | An alkaline solution |
What type of solution is formed when a non-metal oxide is dissolved in water? | An acidic solution |
When magnesium burns with oxygen: i-what is the colour of the flame ii-what does the product look like iii-is it alkaline or base when dissolved in water | i-bright white flame ii-white powder iii-slightly alkaline |
When carbon is burnt in air i-what is the colour of the flame ii-what does the product look like iii-is it alkaline or base when dissolved in water | i-orange-yellow flame ii-carbon dioxide gas iii-slightly acidic |
When sulfur is burnt in air i-what is the colour of the flame ii-what does the product look like iii-is it alkaline or base when dissolved in water | i-pale blue ii-sulfur dioxide gas iii-acidic |
When sodium is burnt in air i-what is the colour of the flame ii-what does the product look like iii-is it alkaline or base when dissolved in water | i-bright yellow flame ii-white solid; sodium oxide iii-slightly alkaline |
When iron is burnt in air i-what is the colour of the flame ii-what does the product look like iii-is it alkaline or base when dissolved in water | i-orange flame ii-black powder iii-does not dissolve in water |
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