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Which method separates sand from water?

1. AFiltration
2. BChromatography
3. CDistillation
4. DEvaporation of the sand

What is an alpha particle made of?

1. A1 proton and 1 electron
2. B2 protons and 2 neutrons
3. CA single high-energy electron
4. DPure electromagnetic energy

Which process is exothermic (releases heat)?

1. AEvaporating water
2. BMelting a block of ice
3. CBurning methane gas
4. DPhotosynthesis

What is the shape of a water molecule?

1. ABent
2. BLinear
3. CTetrahedral
4. DFlat triangle

Koefisien mana yang menyetarakan persamaan __H₂ + __O₂ → __H₂O?

1. A2, 2, 2
2. B1, 2, 1
3. C2, 1, 2
4. D1, 1, 1

Bagaimana susunan elektron atom natrium (11 elektron)?

1. A8, 2, 1
2. B2, 8, 1
3. C2, 9
4. D2, 8, 2

Pernyataan mana tentang katalis dalam reaksi reversibel yang benar?

1. AMempercepat kedua arah secara sama
2. BHanya mempercepat reaksi maju dan menghentikan reaksi balik
3. CMenambah jumlah produk pada kesetimbangan
4. DHabis terpakai selama reaksi berlangsung

Equal masses of sand and water sit in the sun and absorb the same amount of heat. Which warms up more, and why?

1. AWater, because it has a higher specific heat capacity than sand
2. BSand, because it has a lower specific heat capacity than water
3. CSand, because it has a higher specific heat capacity than water
4. DBoth warm equally, because they absorbed the same heat