Which of the following explains how one of the postulates in John Dalton's atomic theory later became robust knowledge? (5 points) O Some scientists found that some atoms of a particular element have different number of neutrons.
O Various scientists found that atoms combine in simple whole number ratios to form compounds.
O Some scientists found that atoms consist of subatomic particles with varying mass and charge.
O Various scientists found that sometimes a fraction of an atom can take part in a chemical reaction.

Put these processes of the water cycle in the correct order, starting at the point where the water is in the lake: 1. water evaporates into the atmosphere 2. rain, snow, or other precipitation falls 3. water collects into larger bodies of water 4. water vapor condenses into liquid water

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size