All categories

3 years ago

Red light has a wavelength of about 7×10−7 m. will exposure to red light cause electrons to be emitted from cesium?

Chemistry

1 answer:

lorasvet [3.4K]3 years ago

5 0

No i dont think so i checked in my book

You might be interested in

Please somone help me with a chemistry question brainliest to whoever answers correctly and 20 points

Free_Kalibri [48]

523.15

brainliest please

I answerd

6 0

3 years ago

Does the motion of the moon affects how we see it from Earth? *

irina [24]

Yes that’s why we see it in different shapes all the time

7 0

3 years ago

What is the total number of atoms in 0.20 mol of propanone, CH3COCH3?

Nutka1998 [239]

Answer:

1.2×10²³ atoms.

Explanation:

Data obtained from the question include:

Mole of propanone = 0.20 mole

Number of atoms of propanone =.?

From Avogadro's hypothesis, we understood that 1 mole of any substance contains 6.022×10²³ atoms.

This implies that 1 mole of propanone also contains 6.022×10²³ atoms.

Thus, we can obtain the number of atoms in 0.20 mole of propanone as illustrated below:

1 mole of propanone contains 6.022×10²³ atoms.

Therefore, 0.20 mole of propanone will contain = 0.2 × 6.022×10²³ = 1.2×10²³ atoms.

Thus, 0.20 mole of propanone contain

1.2×10²³ atoms.

6 0

3 years ago

Perform the following

vivado [14]

The correct number of significant figures and digits is 3

5 0

3 years ago

Correct forms of the equation of Charles’s law is (are)

xxTIMURxx [149]

According to Charles' Law the volume of an ideal gas is directly proportional to its absolute temperature in Kelvin keeping the pressure constant.

V∝ T, P is constant

where V, T and P are volume, temperature and pressure

$\frac{V1}{T1 }$ = $\frac{V2}{T2}$

where V₁, T₁, V₂ and T₂ are initial volume, initial temperature, final volume and final temperature.

8 0

3 years ago