All categories

3 years ago

A substance is less dense than water, it will_ to the____

Chemistry

1 answer:

Vinil7 [7]3 years ago

3 0

It will Rise/Float to the surface/top.

You might be interested in

Which two structures would provide a positive identification of a plant cell under a microscope

katovenus [111]

Lysosome, central vacuole

7 0

3 years ago

Read 2 more answers

A piece of gold wire has a diameter of 0.175 cm. How much will precisely 1.00 x 10^5 of the wire weight?

Mamont248 [21]

Given data:

Diameter of the gold wire (d) = 0.175 cm

Length of the gold wire (l) = 1.00 * $10^{5}$ cm

Volume of the given gold wire = volume occupied by a cylindrical object\

= π * $r^{2}$ *l

here r = radius of the cross section

where : r = d/2

Hence the volume V = π * $(d/2)^{2}$ *l

= $3.142 * (0.175/2)^{2} * 1.00*10^{5} = 2.41 * 10^{3} cm^{3}$

Density of gold = 19.3 g/cm3

Weight of the gold wire = Density * volume

= $19.3 g/cm^{3}$ * $2.41*10^{3} cm^{3}$

= $4.65 * 10^{3} g = 4.65 kg$

5 0

4 years ago

The thinnest blood vessels in your body are the____ .

Ymorist [56]

The correct word to fill the blank in the sentence is "capillaries". The thinnest blood vessels in your body are the capillaries. These are the blood vessels that blood is able to transfer sugars and oxygen into the tissues.

4 0

3 years ago

Calculate the energy of light having a wavelength of 395 nm. <br> show work

Liono4ka [1.6K]

Answer: $5.032\times 10^{-19}\ J$

Explanation:

Given

The wavelength of the light is $\lambda =395\ nm$

Energy associated with a photon(light) is given by $E=\frac{hc}{\lambda}$

where, $h=\text{Planck constant}$

$c=\text{speed of light}$

$\Rightarrow E=\dfrac{6.626\times 10^{-34}\times 3\times 10^8}{395\times 10^{-9}}\\\\\Rightarrow E=5.032\times 10^{-19}\ J$

Therefore, the energy associated with the light is $5.032\times 10^{-19}\ J$

6 0

3 years ago

The rate of gas diffusion is ---Select--- proportional to temperature because a higher temperature means a/an increase in the ki

frozen [14]

Answer:

The rate of gas diffusion is directly proportional to temperature

Explanation:

The rate of gas diffusion is

a) directly proportional to square root of temperature

b) inversely proportional to the square root of density

c) directly proportional to pressure

d) inversely proportional time and square root of molecular mass

Thus, option A is correct

8 0

3 years ago

A substance is less dense than water, it will_____ to the________

A substance is less dense than water, it will_ to the____