Answer:
Densities increase down the group
MP and BP decrease down the group
Softness increased going down the group
Speed of reacting increases going down the group
Answer:
The focal length of a lens is refers to the distance from the center of the lens to the principal foci.
True. No matter can be created nor destroyed in pretty much every aspect of life, especially chemical reactions.
Answer: false
Explanation:
While kilograms are the unit used to measure body mass, the device used is a scale.
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