Why are strong acids also strong electrolytes? Also, is every strong electrolyte a strong acid?

Explanation:

An acid is a substance that interacts with water to produce excess hydroxonium ions in an aqueous solution.

An electrolyte is a compound which breaks up into ions when dissolved in water or when in molten form.

A strong acid is one that ionizes almost completely ion aqueous solution.

To make a strong electrolyte, there must be presence of ions from compounds that ionizes completely in aqueous solution or in molten form to give free mobile ions. This is why strong acids are very strong electrolytes too.

2. Other examples of strong electrolytes are mineral acids, caustic alkalis and salts because they also ionize completely in aqueous solutions. Any compoud that ionizes completely in aqueous solution will produce a strong electrolyte.

1. the question asks the most appropriate, which seems to rule out "all of the above." your choice appears to be the correct one.

2. the protocol described is good for identifying correlation, but not cause and effect. for cause/effect, you need to devise a protocol that will assign the treatment (or not) to groups that have essentially the same "demographics" with respect to all the other variables. your choice regarding control group seems appropriate. random assignment of treatment (choice d) may be appropriate also. (i think you can argue that b and d are just different descriptions of the same method.)

3. d will randomize the birds, but may not guarantee there are 10 in each group. e will do both, so seems the better choice.

comment on question 2

based on the problem statement, it seems clear that confident, attentive drivers are more likely to use daytime running lights. so, the protocol might need to be devised in such a way that the lights would be turned on or off without the driver's knowledge. (an attentive driver will figure it out.) assigning a confident, attentive driver to a group required to drive without running lights might mess with his/her confidence and attentiveness. you don't want your experiment to do that. (nor do you want the experiment to subject a driver to greater risk of accident as a consequence of driving without running lights.) experiments involving human safety are always problematic.

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).