Jawaban:
1 . 6.5mm + 0.34mm = 6.84mm
D
2. perubahan kimia menghasilkan zat baru = 3 dan 4 D
3. Nomor atom = jumlah elektron = 2
No massa = proton + neutron = 2 + 2 = 4
Neutron = netral = 2
= 2,4,2 B
4. penguapan = evaporasi A
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Jawaban:
1 . 6.5mm + 0.34mm = 6.84mm
D
2. perubahan kimia menghasilkan zat baru = 3 dan 4 D
3. Nomor atom = jumlah elektron = 2
No massa = proton + neutron = 2 + 2 = 4
Neutron = netral = 2
= 2,4,2 B
4. penguapan = evaporasi A