The process that occurs when physical forces break rock into smaller pieces without changing the rock’s chemical composition is called a. differential weathering b. mechanical weathering c. erosional weathering d. chemical weathering

Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants

What are the first three quantum numbers for the electrons located in subshell 2s?

Which factor is likely to impact the possible number of compounds ?