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3 years ago

6

What happens to the molecules as water freezes? A. The water molecules stop moving B. The water molecules move faster C. The wat

er molecules slow down D. The water molecules react chemically to form ice molecules

1 answer:

a_sh-v [17]3 years ago

6 0

Answer:A

Explanation: A

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Why does green light slow down more than orange light does when passing through an object?

otez555 [7]

The correct answer among the choices is the last option. <span>Green light has a higher frequency than orange light. Frequency is inversely proportional to wavelength. G</span>reen has wavelengths ranging form 495 to 570 nm and orange has wavelengths ranging from 590 to 620 nm. Speed is said to be directly proportional with wavelength. Higher wavelength means more faster light.

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4 years ago

Read 2 more answers

CAN SOMEONE PLEASE EXPLAIN

Kipish [7]

The answer will be b

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3 years ago

Put these numbers from greatest to least precision<br> 0.10 g/mL <br> 0.0447g/mL <br> 0.0700g/mL

horrorfan [7]

I am going to go with,

0.10 g/mL
0.0700 g/mL
0.0447 g/mL

I don't know if this is the correct answer, but I am 80% sure that it may be.
:) :)

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3 years ago

An aqueous solution has 124 g of a salt dissolved in 1000 g of solution. What is the concentration of the salt in units of %?

tester [92]

Answer: 12.4%

Explanation:

124/1000 * 100 = 12.4%

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2 years ago

You measure salt water in a tank to have a density of 1.02 g/mL. A balloon weighs 2.0 g and you weights have a mass of 30.0 g ea

Elden [556K]

Weight of the balloon = 2.0 g

Six weights each of mass 30.0 g is added to the balloon.

Total mass of the balloon = 2.0 g + 6*30.0 g = 182 g

Density of salt water = 1.02 g/mL

Calculating the volume from mass and density:

$182g*\frac{mL}{1.02g} =178mL$

Converting the volume from mL to cubic cm:

$178 mL * \frac{1cm^{3} }{1mL} =178cm^{3}$

Assuming the balloon to be a sphere,

Volume of the sphere = $\frac{4}{3}$ π $r^{3}$

$178 cm^{3} = \frac{4}{3}(\frac{22}{7})r^{3}$

r = 3.49 cm

Radius of the balloon = 3.49 cm

Diameter of the balloon = 2 r = 2*3.49 cm = 6.98cm

4 0

3 years ago