Which of the following is an element?

a. o2

b. CaCl2

c. HPO4

d. CO2

(also i'm freshman in high school, idk why it's saying middle school)

Where are the metals located on the periodic table

A softball is hit high into the air. As it rises, the softball

What does the second law of thermodynamics say about entropy apex?

At the System Demo, each team demonstrates their own work but the system is not integrated. They say they underestimated the integration effort, but they cannot integrate every Iteration and meet the planned scope.

Which of these statements best explains why P waves arrive earlier than S waves at the seismic station? A. S waves are generated after P waves arrive at the surface B. S waves make longer lines on the seismogram than P waves C.

Which type of seismic wave produces the most severe ground movements?

If you are driving 95 km/h along a straight road and you look to the side for 2.3 s, how far do you travel during this inattentive period?

An ordinary flea has a mass of 210. How many newtons does it weigh?

Plants and animals use the oxygen in the air to turn food into energy. This life process is known as what? A) digestion Eliminate B) excretion C) growth D) respiration

A column of soldiers, marching at 132 steps per minute, keep in step with the beat of a drummer at the head of the column.