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vladimir1956 [14]
3 years ago
12

Which phenomena support only the particle theory of light? Check all that apply. reflection

Chemistry
2 answers:
kogti [31]3 years ago
5 0

traveling in a straight path and photoelectric effect

Verdich [7]3 years ago
3 0
Light is made of particles and with help of them the particle theory of light explains the light. Newton concluded that light has frequency-like properties. According to this the particle theory of light supports the phenomena of light bending around objects. Albert Einstein conducted research on the photoelectric effect, in which electrons fly out of a metal surface exposed to light and <span>energy of the electrons (photoelectrons) that fly out of the metal does not change whether the light is weak or strong.</span> 
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Why do you move the .0100 - x to the left side of the equal sign?
dlinn [17]
Because negatives are on the left and positives are on the right , if it was .0100 +x it would move to the right since +x implies that the x is positive.
5 0
3 years ago
The Lewis dot model of a metal atom has two dots. Which of the following is true about the atom?
a_sh-v [17]

Answer:

It is present in the second group of the periodic table

Explanation:

7 0
3 years ago
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For a solar eclipse to occur which of the following alignments is necessary? A. The moon is located along a straight line betwee
Aloiza [94]

For a solar eclipse t occur;

C. The moon is located from a line between the sun and earth

8 0
3 years ago
it takes 513 kj to remove a mole of electrons from the atoms at the surface of a piece of metal. how much energy does it take to
schepotkina [342]

Answer:

The right solution is "8.5\times 10^{-19} \ joule".

Explanation:

As we know,

1 mole electron = 6.023\times 10^{23} \ no. \ of \ electrons

Total energy = 513 \ KJ

                     = 513\times 1000 \ joule

For single electron,

The amount of energy will be:

= \frac{513\times 1000}{(6.023\times 10^{23})}

= 8.5\times 10^{-19} \ joule

8 0
3 years ago
How many grams of solute are needed to make 37.5 mL of 0.750 M KI solution? Round to three significant digits.
Marysya12 [62]

4.648 gm of solute is needed to make 37.5 mL of 0.750 M KI solution.

Solution:  

We will start with the Molarity  

\text { Molarity }=\text { Mole of solute } \div \text { liter of solution }

Also we know 1000 ml = 1 L

Therefore 37.5 ml by 1000ml we obtained 0.0375L  

Equation for solving mole of solute

\text { Mole of solute }=\text { Molarity } \times \text { Liters of solution }

Now, multiply 0.750M by 0.0375

Substitute the known values in the above equation we get

0.750 \times 0.0375=0.0281

Also we know that Molar mass of KI is 166 g/mol

So divide the molar mass value to get the no of grams.

0.028 \times 166=4.648

So 4.648 gm of Solute is required for make 37.5 mL of 0.750 M KI solution.

8 0
3 years ago
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