<span>Which is an example of students breaking a safety rule when dealing with chemicals?
</span>
D. Tying back loose hair
your not supposed to touch any of your body when dealing with chemicals
Answer: the three types of freshwater are swamp,bog and marshes
Explanation: similarities between them
They are all covered with shallow layers of water during some or all of the year.surface water comes from streams,rivers,lakes,ponds and oceans and the Earth's surface.
Difference between them
Bogs are found in cooler northern areas,tends to be acidic and contain many mosses
Swamps are many trees and shrubs and are found in the warm and humid southern United State
Marshes are usually grassy
Answer:
D. A positive charge, because of a covalent bond with oxygen
Explanation:
A water molecule contain both hydrogen and oxygen atom. Water is a polar molecule because it has positive electric charge in one of it's poles and negative charge on the other. The hydrogen is positively charged and the oxygen is negatively charged which are bonded by covalent bond. Hydrogen is positively charged because it cannot attract electrons strongly like oxygen which is positively charged. There is unequal sharing of electrons in water molecules and this is why oxygen is slightly negative and hydrogen is slightly positive.
Answer:
b. water molecules are strongly cohesive
Explanation:
Water is highly cohesive and clumps together into drops because of its cohesive properties. Water molecules attracting each other result in surface tension, which causes raindrops to form round beads as they fall on a surface.
Hope this helps!
