Answer:
A chemical formula tells us the elements included in the compound. The letters in the chemical formula represent different elements.
Answer:
Oils repel water, so it helps these animals keep their fur dry, which helps them stay warm.
Answer:
The leaves no longer have water, which means that there is little osmotic pressure which keeps it turgid.
Explanation:
The stem still contains water because of the capillary action that occurs. However, since there is no strong attraction, the water cannot be pulled to the leaves.
Answer:
protons is 7 neutrons should be 9
Explanation:
protons number is its atomic number
the number of protons and the number of neutrons determine an element's mass number.