H2O, also known as water, stands for two hydrogen atoms and one oxygen atom. Hope this helps! ^^
Looks correct but the second to last I would of put abiotic and biotic factors but I don’t know what’s right for you
Answer:
Sample A is a mixture
Sample B is a mixture
Explanation:
For sample A, we are told that the originally yellow solid was dissolved and we obtained an orange powder at the bottom of the beaker. Subsequently, only about 30.0 g of solid was recovered out of the 50.0g of solid dissolved. This implies that the solid is not pure and must be a mixture. The other components of the mixture must have remained in solution accounting for the loss in mass of solid obtained.
For sample B, we are told that boiling started at 66.2°C and continued until 76.0°C. The implication of this is that B must be a mixture since it boils over a range of temperatures. Pure substances have a sharp boiling point.
Answer:
One advantage is radio telescopes have much longer wave length
Answer:
kinetic energy
Explanation:
because of the movement of gravity and space
