Formation of a new substance is a sign of a change.
A)
Physical
B)
Chemical
Kinetic
D)
Electrical

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

Draw the aromatic compound toluene (methylbenzene). show all hydrogen atoms, including those on the ring.

Of the following elements, which is the least reactive? a. c b. h c. li d. he