Which scientist was able to quantify the electron's charge and estimate its specific mass?

Suppose a laboratory wants to identify an unknown pure substance. The valence electrons of the substance's atoms feel an effective nuclear charge of + 4.

All of the following are true except foreshocks can happen before an earthquake aftershocks can happen after an earthquake foreshocks and aftershocks can happen at the same time foreshocks and aftershocks cannot happen at the same time

Ben dug up some soil in his neighborhood that has very large particles and felt rough to the touch. When Ben added water to a sample of the soil it drained through very quickly which type of soil can Ben conclude that he has found

Like all equilibrium constants, Kw varies somewhat with temperature. Given that Kw is 3.31 * 10-13 at some temperature, compute the pH of a neutral aqueous solution at that temperature.

Do you like papaya? are you a papaya? if so how did u become a papaya?

What is carbon fixation, and how does it relate to photosynthesis? It is the absorption of CO2 from the air;, and it occurs during the light-dependent reactions. It is the reduction of CO2, and it occurs during the Calvin cycle.

What is a Boitic factor

What would the partial pressure of water vapor be if you included this gas in the problem and it gave a total of 1.03atm? 0.01 atm 0.03 atm 1.03 atm

Define a balance equations:

What is the best description of the Bohr model of the atom? The atom consists of a positively charged material with negatively charged electrons embedded within it. The atom consists of a nucleus with electrons orbiting randomly around it.