1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
____ [38]
2 years ago
8

Which statement best describes the light that will cause emission of electrons from a given metal through the photoelectric effe

ct?
light with a low enough intensity
light with a high enough frequency
light with a high enough intensity
light with a low enough frequency
Chemistry
1 answer:
Sergio039 [100]2 years ago
4 0

Answer:

light with a high enough intensity

Explanation:

You might be interested in
Which statement is true? Energy cannot be created or destroyed. Energy can be destroyed but not created. Energy can be created b
vaieri [72.5K]
Energy can not be created and cannot be destroyed
<span />
6 0
3 years ago
Read 2 more answers
How many molecules of carbon tetrafluoride, CF4, are in 176 grams of CF4?
RUDIKE [14]

Answer:

1.2*10^24 molecules of CF4

Explanation:

the molar mass of cf4 is 88.0043 g/mol

176/88.0043 = 2 moles of CF4

Then multiply by avogadro's number (6.022*10^23) to get the number of molecules

2*6.022*10^23 = 1.2*10^24 molecules of CF4

5 0
2 years ago
Which of the following is not true of a scientific theory?
Furkat [3]

Answer: a,b

Explanation: because a scientific theory is something that been thought of and tested multiple times.

3 0
2 years ago
explain why it is a common laboratory procedure to heat analytical reagents and store them in a dessicated atmosphere (a sealed
Readme [11.4K]

Explanation:

Most reagent forms are going to absorb water from the air; they're called "hygroscopic".  Water presence can have a drastic impact on the experiment being performed  For fact, it increases the reagent's molecular weight, meaning that anything involving a very specific molarity (the amount of molecules in the final solution) will not function properly.

Heating will help to eliminate water, although some chemicals don't react well to heat, so it shouldn't be used for all.  A dessicated environment is simply a means to  "dry."  That allows the reagent with little water in the air to attach with.

6 0
2 years ago
Review the equation below.
olchik [2.2K]

2KClO3 --> 2KCl + 3O2

3 moles of oxygen are produced when 2 mol of potassium chlorate (KClO3) decompose.

3 0
3 years ago
Read 2 more answers
Other questions:
  • Dalton’s atomic theory included which idea?
    14·1 answer
  • An understanding of periodic trends is important because the trends 1. can be used to convert non-useful elements to useful ones
    7·1 answer
  • The volume of a gas is 450 mL when its pressure is 1.00 atm. If the temperature of the gas does not change, what is the pressure
    5·2 answers
  • How do scientists use DNA to study the origins of humans? a. Cloning c. Using Punnett squares b. Examining the number of chromos
    6·1 answer
  • What is reactant, atom, product, and molecule
    8·1 answer
  • Which word equation shows hydrogen reacting with oxygen to form water?
    6·1 answer
  • Explain how the periodic table can help in writing electron configurations
    5·2 answers
  • I have the smallest atomic number of all the
    10·1 answer
  • 10.A certain ion of an atom possesses 16 neutrons, a mass number of 31 and a charge
    14·1 answer
  • What is the Newton's fourth law​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!