Answer:
Water. Chemical Formula: H2O.
Table Salt. Chemical Formula: NaCl.
Sucrose (Sugar) Chemical Formula: C12H22O11.
Soaps. Chemical Formula: RCOO–Na, Where R is a long chain of carbon atoms ranging from 16-18 in number.
Toothpaste. Chemical Formula: CaCO3 or NaF.
Explanation:
Answer:
tundra bc it has barley any food source and has vary little inhabitants
Explanation:
Answer:
1. Weight.
2. Large lens will tend to deflect under its own weight
Explanation:
Hello,
Weight is a big part of it. There’s a reason the largest working refractor on Earth (the Clark refractor at Yerkes Observatory in Wisconsin) has a 102-cm objective; a 125-cm lens was created for the Paris Exposition of 1900, but the accompanying telescope was a pain to use (very hard to aim) and was scrapped when no one wanted to buy it.
Lens can only be supported at its edges unlike mirrors, and a large lens will tend to deflect under its own weight unless it’s so thick that it won’t transmit much light. It is also extremely difficult to cast and polish a glass blank of such huge size, which is why (see List of largest optical refracting telescopes - Wikipedia) almost no one has tried building one in over a century.
Best regards.
<u>Answer:</u> The mass of sodium chloride solution present is 0.256 grams.
<u>Explanation:</u>
We are given:
39.0 % of sodium in sodium chloride solution
This means that 39.0 grams of sodium is present in 100 grams of sodium chloride solution
Mass of sodium given = 100 mg = 0.1 g (Conversion factor: 1 g = 1000 mg)
Applying unitary method:
If 39 grams of sodium metal is present in 100 grams of sodium chloride solution
So, if 0.1 grams of sodium metal will be present in = 
of sodium chloride solution.
Hence, the mass of sodium chloride solution present is 0.256 grams.
Protons=electrons(12 electrons)
however it has a charge of +2 which means it loses two electrons, thus, there are 10 electrons.
