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zheka24 [161]
4 years ago
10

What percentage of the electromagnetic spectrum is visible light

Chemistry
1 answer:
12345 [234]4 years ago
4 0

Well - it depends on where you start and where you finish on the electromagnetic spectrum. But by most estimates, we're can see about 0.0035% of the electromagnetic spectrum (that includes gamma rays, radio waves, x-rays, infrared, ultraviolet, microwaves, etc.).

<em>Hope this helps</em>!

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In a balanced chemical equation, the numbers of individual particles and the numbers of moles of particles are represented by th
Yuri [45]
In a balanced chemical equation, the numbers of individual particles and the numbers of moles of particles are represented by the COEFFICIENTS.

:-) ;-)
7 0
3 years ago
A glacier recedes and exposes bare rock. Which of the following will most likely occur next?
timama [110]

The bare rock will erode, once it erodes the rock will no longer be bare cause eroded sediment will cover it.

6 0
3 years ago
Read 2 more answers
If 832J of energy is required to raise the temperature of a sample of aluminum from 20.0° C to 97.0° C, what mass is the sample
LiRa [457]
Data:
Q (Amount of heat) = 832 J
m (mass) = ?
c (Specific heat) = <span>0.90 J/(g × ° C)
T (final) = 97 ºC
To (initial) = 20 ºC
</span>ΔT = T - To → ΔT = 97 - 20 → ΔT = 77 ºC

Formula:
Q = m*c*ΔT

Solving:
Q = m*c*ΔT
832 = m*0.90*77
832 = 69.3m
69.3m = 832
m =  \frac{832}{69.3}
\boxed{\boxed{m \approx 12.00\:g}}\end{array}}\qquad\quad\checkmark
5 0
3 years ago
Important of thermometer​
Mama L [17]

Answer:

to see if something or someone has either a low or high temperature

Explanation:

because you wanna know if some has a fever so you dont get the coronna virus

7 0
3 years ago
A chemist makes a solution of NaOH for use in an experiment. She dissolves 0.00500 mol NaOH in 1.00 L H2O. The NaOH completely d
anygoal [31]

Answer:

pH = 11.7

Explanation:

<u>Given:</u>

[OH-] = 0.00500 M

<u>To determine:</u>

pH of the solution

<u>Explanation:</u>

pH refers to the H+ ion concentration in a given solution whereas pOH indicates the OH- ion concentration.

pH and pOH are related by the following equation:

pH + pOH = 14 ------(1)

Here:

pH = -log[H+]\\\\pOH = -log[OH-]

When OH- = 0.00500 M

pOH = -log(0.00500) = 2.30\\

Based on equation(1):

pH = 14 - pOH = 14 -2.30=11.7

6 0
3 years ago
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