While most constellations are only visible to us in different seasons, some are always there 24/7/365 because they are positioned close to the Polar Axis, or the Polaris.
Answer:
There are 689.15 grams in 4.2 moles of Ca(NO₃)₂. This can be done by the conversion of moles to grams.
Explanation:
For a detailed step-by-step method on how to solve this, read the Expert-verified answer for this question: https://brainly.ph/question/1303864
Answer:
True
Explanation:
Theories are not laws and so new scientific evidence could render them as untrue. For example, the big bang theory on how the universe has started is just a theory. Current evidence backs it up, but if future evidence disproves it, the theory will be replaced by a different one.