Why is there a difference in how bright the light bulbs are when we connect light bulbs in a series versus parallel? Question 8 options:

If the two bulbs are in parallel, the electrons only have to go through one light bulb, so there is less resistance.

The extra wire in the parallel circuit makes it easier for electricity to flow.

The electrons move more slowly in a parallel circuit due to the extra wire.

If there are two light bulbs in series, there is less resistance, so the electrons move faster.

In an energy pyramid, which level has the most available energy?

1. suppose a reaction mixture, when diluted with water, afforded 300 ml of an aqueous solution of 30 g of the reaction product malononitrile [ch2(cn)2], which is to be isolated by extraction with ether. the solubility of malononitrile in ether at room temperature is 20.0 g/100 ml, and in water is 13.3 g/100 ml. what weight of malononitrile would be recovered by extraction with (a) three 100-ml portions of ether and (b) one 300-ml portion of ether? suggestion: for each extraction, let x equal the weight extracted into the ether layer. in part (a), the concentration in the ether layer is x/100 and in the water layer is (30 x)/300; the ratio of these quantities is equal to k 20/13.3.

How many moles are contained in 5.6 l of h2 at stp