All categories

3 years ago

PLEASE HELP I REALLY NEED THIS IM LATE

Chemistry

1 answer:

ANTONII [103]3 years ago

4 0

Answer:

Pitch:it refers to the highest and lowness of a sound.

Wavelength: It is the distance measured from one crest to another, or from one trough to another.

Refraction of Light: The light bends as it travels from one medium to another.

Reflection of Light: It happens when light bounces back after hitting a well-polished surface.

Crest: The highest point of the wave from the center.

I hope this helps! :)

You might be interested in

Which one is an accurate description of an erosion?

Sergeeva-Olga [200]

the process of eroding or being eroded by wind, water, or other natural agents

6 0

3 years ago

The chemical equation for a reaction between K2Cr2O7 and HCl is shown. K2Cr2O7 + 14HCl → 2CrCl3 + 2KCl + 3Cl2 + 7H2O

guapka [62]

Answer: The correct answer is Option b.

Explanation:

Oxidizing agent is defined as the chemical reagent which helps the other chemical compound to get oxidized and itself gets reduced. The oxidation state for these species gets reduced because they are undergoing reduction reaction.

For the given chemical equation:

$K_2Cr_2O_7+14HCl\rightarrow 2CrCl_3+2KCl+3Cl_2+7H_2O$

Oxidation state of Chromium is getting reduced from +6 to +3 and oxidation state of chlorine getting increased from -1 to 0.

Hence, $K_2Cr_2O_7$ acts like and oxidizing agent because it is itself getting reduced to $CrCl_3$

Therefore, the correct answer is Option b.

4 0

3 years ago

What best describes a solution ?

topjm [15]

A solution is the answer to a problem

8 0

3 years ago

Read 2 more answers

Sound waves move the slowest through which medium : water ice air wood

sasho [114]

Answer

Sounds travel slowest in gasses so it would be air

5 0

3 years ago

Read 2 more answers

Tungsten fits best into which category?

nordsb [41]

Answer:

B. Element

Explanation:

Tungsten is an chemical element

4 0

2 years ago

Read 2 more answers