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Alchen [17]
3 years ago
7

What does light do in the photoelectric effect?

Chemistry
1 answer:
Trava [24]3 years ago
4 0

Answer:

it's B: light knocks electrons off metal atoms

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Plz answer quick :) it would make me happy
dangina [55]

Answer:

Single replacement reaction

Explanation:

By right, it should be called displacement reaction or redox reaction. Metal ion A in solution is reduced to form solid metal A while metal solid B is oxidised to form metal ion B.

Only 1 type of replacement occurred so it should be single replacement reaction

5 0
3 years ago
Read 2 more answers
The iodide (I2) content of a commercial mineral water was measured by two methods that produced wildly different results.6 Metho
hammer [34]

Answer:

Results from method B is more reliable than method A.

Explanation:

The two method that are used for the analysis produced different results. The first method that is method A  gives higher value of the iodine content than the method B.

When $Mn^{2+}$ was added to water, method A showed an increased in the iodine content and it increases with the increase in the amount of $Mn^{2+}$ .

Where as in the method B, there is no change in the results. Therefore the measurements provided by the method A shows an inference of $Mn^{2+}$ ion.

The measurement of the iodine content is affected by the presence of the ion $Mn^{2+}$ in water.

Since in method B there is no change in measurement, it is independent of the presence $Mn^{2+}$ ion in water.

As higher iodine content is given by method A, so $Mn^{2+}$  ion must be present in original water that must be interfering the measurement. Hence, method B is more reliable.

3 0
3 years ago
PLEASE HELP ME QUICK
Mama L [17]

Answer:

b. decreases

C. neither a physical change nor a chemical change

light work

6 0
3 years ago
If you have 0.045 L of 0.465 M potassium bromide. How many moles of potassium bromide are present?
Mekhanik [1.2K]
The answer to your question is letter A! Hope that helps
7 0
3 years ago
What is the most important monosaccharide on Earth?
Lelechka [254]

Answer:

the answer is A Glucose

hope it helps!

6 0
3 years ago
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