Will mark brainliest and give 30 points
(i have 5 questions) {don't put in random answers either}

2. the intelligence of early humans is demonstrated by the way the pyramids of egypt were built.
true false

3. gunpowder was first discovered during the renaissance.
true false

4. technology has solved some problems and has created others.
true false

6. education declined during the renaissance.
true false

7. technology is science that makes science useful and practical.
a) general
b) experimental
c) pure
d) applying
e) theoretical
f ) technical
(you don't need to use the same answer for both blanks)

!

A3.37-mg sample of protein was chemically digested to convert its nitrogen into ammonia and then diluted to 100.0 ml. then 10.0 ml of this solution was placed in a 50-ml volumetric flask and treated with 5 ml of phenol solution plus 2 ml of sodium hypochlorite solution. the sample was diluted to 50.0 ml, and the absorbance at 625 nm was measured in a 1.00-cm cuvette and found to be 0.486. for reference, a standard solution was prepared from 10.0 mg of nh4cl (molar mass = 53.49 grams/mole) dissolved in 1.00 l of water. then 10.0 ml of this standard was placed in a 50-ml volumetric flask, treated in the same manner as the unknown, and the absorbance found to be 0.323. finally, a reagent blank was prepared using distilled water in place of unknown, it was treated in the same manner as the unknown, and the absorbance found to be 0.076. calculate the weight percent of nitrogen in the protein.