Chemistry Middle School

Brainliest if CORRECT






11

Brainliest If CORRECT11

Answers

Answer 1

Answer:

Model B

Explanation:

Model A shows that light has been reflected, whereas Model B shows the light has been refracted. Light will be refracted as the light enters a more dense medium (glass), from a less dense medium (air).

This website has a really useful, thorough explanation for why this occurs:

(Check the explanation under the heading 'Explaining refraction - Higher')

https://www.bbc.co.uk/bitesize/guides/zw42ng8/revision/2

Hope this helps!

Answer 2
The B is the answer to the question pretty sure

Related Questions

anyone please help? !!!DUE IN 10 MINS!!! PICKING BRAINLIEST TO WHOEVER IS RIGHT!!!

Answers

Answer:

In many areas, rain or snowmelt on seasonally frozen soil is the single leading cause of severe runoff and erosion events. As soils freeze, ice blocks the soil pores, greatly diminishing the permeability of the soil. This is aggravated by the tendency of water to migrate to the freezing front, causing elevated ice content and frost heave.

It might not be the answer you're looking for but I hope it helps and I think it might be B or C.

a.) it’s causes global warning through the release of greenhouse gases

True or False:

A substance is found to be made up of more than one atom, but the atoms are all the same. This substance is most likely an element.

Answers

Answer: true

Explanation:hope this helps

the answer is true!!!!!!!!

What measures the energy of a wave?

Answers

Answer:

ampiltude

Explanation:

Amplitude means a measure of the amount of energy in a wave. Notice in the drawing below how the amplitude measures the height a wave is going above or below the resting position of the wave.

Amplitude is the answer

Draw and use algebra tiles to solve the equation. 2x + 3 = 5 x =

Answers

Answer:

1 is the correct answer:)

Subtract 

3

33

 from both sides of the equation

2+3=5

Simplify

Subtract 

5

5x5x

 from both sides of the equation

Simplify

Divide both sides of the equation by the same term

Simplify

than you will have 1.

2x+3=5x= The answer is 1

What is the crest and trough of a wave?

Answers

Answer:

Explanation:

A crest point on a wave is the maximum value of upward displacement within a cycle. A crest is a point on a surface wave where the displacement of the medium is at a maximum. A trough is the opposite of a crest, so the minimum or lowest point in a cycle. When the crests and troughs of two sine waves of equal amplitude and frequency intersect or collide, while being in phase with each other, the result is called constructive interference and the magnitudes double (above and below the line). When in antiphase – 180° out of phase – the result is destructive interference: the resulting wave is the undisturbed line having zero amplitude.

A crest point on a wave is the minimum value of upward displacement within a cycle

Study the topographic map.



Which value is a good estimate of the railroad’s average elevation?

A. 450
B. 480
C. 500
D. 550

Answers

Answer:

the option is a

Explanation:

I believe it would be A.

What do the key differences between RNA and DNA mean for the spread of these types of viruses?

Answers

Answer:

DNA viruses contain usually double‐stranded DNA (dsDNA) and rarely single‐stranded DNA (ssDNA). These viruses replicate using DNA‐dependent DNA polymerase. ... Compared to DNA virus genomes, which can encode up to hundreds of viral proteins, RNA viruses have smaller genomes that usually encode only a few proteins.

Explanation:

hope it helps my dear friend.

Answer:

Difference Between DNA & RNA Viruses

A virus can self-replicate inside a host cell. ... The viruses that contain DNA as their genetic material are called the DNA viruses. RNA viruses, on the other hand, contain RNA as their genetic material. DNA viruses are mostly double-stranded while RNA viruses are single-stranded

What are some of the reasons climate change is so bad for communities of color? HELP PLSSSSSSSS

Answers

Answer:

Here is a link that will explain more specifically.

https://www.greenamerica.org/climate-justice-all/people-color-are-front-lines-climate-crisis

Explanation:

The United Nations International Panel on Climate Change’s (IPCC) 2013 climate change science report states with “90 to 99 percent certainty” that more frequent and more severe weather events like droughts, intense heat waves, and “more frequent/ intense heavy rainfall events” are a consequence of the climate crisis. And it is communities of color that are bearing the brunt of those events, say many experts.

Other communities of color are also feeling the heat. In California, for example, record heat waves and droughts are affecting Latino communities hardest throughout the state, says Mario Santoyo of the California Latino Water Coalition.

As state farmers see their fruit and vegetable crops shrink from lack of water, it’s the state’s majority-Latino farmworkers who are struggling most as a result, as they scramble to get enough hours picking crops to earn a livable wage.

If an object is placed in water and has a density of 1.9 g/ml will the object float or sink?

Answers

Answer:

float

Explanation:

since everything that have a density more than 1g/l (not g/ml) will sink and less than that will float

then 1.9g/ml < 1g/l

Answer:

it would sink

Explanation: it would sink because the density of water is 0.997 m/ml and 1.9 is more then that

5 A Punnett square is shown below. The domin
trait is represented by R. The recessive trait is
represented by r.

What percentage of the offspring will most
likely show the dominant trait?
(1 25%
(3) 75%
(2) 50%
(4) 100%

Answers

Answer:

75%

Explanation:

RR , Rr , Rr all result in dominant trait

i believe it is 3, 75%.

What is biodiversity?



Only one species in an area


All abiotic factors


The different amount of species in an area


Nitrogen fixation

Answers

Different amount of species in an area.
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