12. What causes the tides? What causes spring tides and neap

tides? Include a diagram that shows the differences between

these tides.

Which acid is the best choice to create a buffer with ph = 7.66?

What causes geologic events such as earthquakes, volcanic eruptions, and the creation of mountains?

Na has a lower IE1 than Mg, but Mg has a lower IE2 than Na because: The radius of Na is smaller than that of Mg. IE1 increases from left to right across a period and IE2 decreases from left to right across a period.

How are changes between phases consistent with the law of conservation of matter

Imagine clark kent is investigating the half-life of krypton-8 and finds that it is approximately 10.8 years. what fraction of the initial amount of krypton-8 would still be remaining after 65 years?

The opposite of vaporization

6.8. Liquid methyl ethyl ketone (MEK) is introduced into a vessel containing air. The system temperature is increased to 55°C, and the vessel contents reach equilibrium with some MEK remaining in the liquid state.

What is the pH of a solution that has a H + concentration equal to 1.7 x 10-5 M? 5.20 0.22 10.20 4.77

4 Compared to the energy and charge of the electrons in the first shell of a Be atom, the electrons in the second shell of this atom have (1) less energy and the same charge (2) less energy and a different charge (3) more energy and the same charge

Chemical systems in nature tend to undergo changes toward