There are 4 cups of water with temperature of 20°C, 60°C, 80°C and 95°C. Which water in which the particles move fastest? Why?
95°C (highest), because of highest energy
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thief
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fairy
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shark
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baam
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15
Why is Gold used for various types of jewellery?
Because it is shiny and malleable
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10
True of False: Metals like gold, silver, iron and copper are commonly used in electrical wiring.
F
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boom
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rocket
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10
A solution with a lower concentration (diluted) has (more/less) solute particles compared to a solution with a lower concentration.
less
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25
Why is alloy stronger and harder than pure metal?
Because particles has a regular pattern so the particles are easy to slide, but they cannot do that in alloy because there are different types of atoms in alloy