<span>A supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.</span>
Answer:
1.Handpicking,winnowing and sieving 2. distillation 3.distillation 5. winnowing 6.magnet
Answer:
300kg
Explanation: The question says about 30%, so I think it is 300kg
Sodium chloride and prussic acid are formed
NaCN+HCl→NaCl+HCN
Explanation:
Which is a pure substance?
1. soda
2. gasoline
3. salt water
4. carbon dioxide
carbon dioxide
Bromine, a liquid at room temperature, has a boiling point of 58°C and a melting point of -7.2°C. Bromine can be classified as a
1. compound.
2. impure substance.
3. mixture.
4. pure substance.
pure substance.
