Question 8 of 32 A student monitored tides using a web camera. She noticed that the tide
reached different parts of the shore at different times of the day. Which
description best explains the student's observations?
O A. Variations in salinity and temperature transmit waves across the
ocean.
O B. Ocean water is driven by differences in water density.
O C. As Earth rotates, the moon's gravity pulls on different parts of the
planet
O D. Underwater disturbances displace large amounts of water.
Ok

2fe + 3h2so4 -> fe2(so4)3 + 3h2

it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.

you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.

we change the coefficients instead as that only changes the number of molecules rather than the substance itself.

hope this !

a pan containing water is placed in a positio n where it is exposed to a 10 mile per hour wind. the pan contains a uniform depth of 1.27 cm of water, is quite wide, and has a length of 2.44 m in the wind direction. the water in the pan is at a constant temperature of 15.5 °c.