Could someone help with my science questions?

[I am r4ymond]

I need help with the following science questions:

29) The color, age, and temperature of a star is determined mostly by the

A. the magnitude of the star
B. closeness of the star to the center of a galaxy
C. point at which the star is in its life cycle
D. distance the star is from Earth

33) The products in a chemical reaction always

A. retain some of the characteristics as the reactants
B. have higher melting and boiling temperatures than the reactants
C. have different properties than the reactants
D. can be separated back into the reactants with a second chemical reaction

35) Which statement is true about the boiling point of a particular substance X?

A. at the same pressure, it is always the same
B. it is always the same
C. it is the same temperature as the melting point
D. it can be easily lowered by cooling the substance first

38) When sodium hydroxide (NaOH) is mixed with hydrochloric acid (HCL), a chemical reaction takes place. Which formula shows the products?

A. NaCL + H(subscript 2)O
B. Na + OH + H + CL
C. HNaH + HCL
D. CLNA + O(subscript 2)H + NaOH

53) If you put water, ethyl alcohol, cooking oil, and corn syrup into a jar, they will form layers. Which of these is the correct order of the layers from bottom to top?

A. water, cooking oil, ethyl alcohol, corn syrup
B. corn syrup, water, cooking oil, ethyl alcohol
C. ethyl alcohol, cooking oil, water, corn syrup
D. cooking oil, corn syrup, water, ethyl alcohol

55) A student hypothesizes that because a rainbow appeared after a heavy rainfall, stretching from point A to point B on the horizon on 2 separate occasions, a rainbow will always appear between point A and point B after a heavy rainfall. How valid is this conclusion?

A. It is valid because it used an observation and a test to verify a testable hypothesis.
B. It is invalid because at least one more incidence is needed for the data.
C. It is valid because it is based on the scientific method.
D. It is invalid because the results cannot be independently and consistently reproduced.

Help is greatly appreciated.

 

[Hedgehogofchaos]

c
c
a
a
b
d

 

[Hedgehogofchaos]

29. C All other options have nothing to do with the age of the star
33. C Again all other options cannot be correct.
35. A The answers C & D are incorrect. A and B are correct, but A is a better answer.
38. A When an acid and a base react they always produce a salt and water
53. B The most dense liquid will settle to the bottom and the lighter liquids to the top
55. D it is invalid because you cannot prove that the rainbow will appear there again, you do not have a process for obtaining this conclusion.

 

[I am r4ymond]

According to one of my classmates, they say that the answer B is completely off, along with A. It's rather confusing

 

[Hedgehogofchaos]

For which question?
Its hard to help if I don't know what I'm helping with

 

[shakirmoledina]

i would like to agree with hedge's answer they all seem correct to me
u can further say for the last question as D or B since rainbows are also dependent on the rain droplets location which would cause the double refraction and stuff to produce the rainbow. Maybe its B cuz u need the light source (location probably), the refractors (water/rain) and the surface upon which it could fall hence the sky or whatever.
all A answers are correct

 

[Hedgehogofchaos]

But then then the main light source depends on the time of day of the rain storm.

If you have a Heavy rain storm at night you aren't going to get a rainbow no matter what.

 

[I am r4ymond]

I already went over the homework answers today. Sorry about that. And thank you both Hedgehogofchaos and shakirmoledina for helping .

I asked these answers to make sure that I'd get it correct I would have my desk taken away (according to my teacher, anyone who receives a C+ or lower as a homework grade will get their desk taken away). Glad that I didn't get my desk taken away

Again, thanks for the help