Answer:
All groups have the same number of valence electrons.
Explanation:
groups are the columns.
Chemical change cuz you are adding another substance to your water which changes the molecular structure of the water.
Answer:
One way to measure the volume of any irregular object (in your case, a stone) is to submerge it completely under water and measure the change in the height of the water level. This change in the water level (let's say it goes from 50 mL to 65 mL) indicates that the stone has a volume of 15 mL.
D. 100%, extremely sure. Because Newton's 3rd law states every force has an equal and opposite reaction.
4.8 g/cm3 with sig figs since it's mass/volume you divide 76 grams by 16 cm3
