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
Firdavs [7]
3 years ago
5

Write the symbol for every chemical element that has atomic number greater than 55 and less than 140.8 u

Chemistry
1 answer:
patriot [66]3 years ago
8 0
Answer on the picture

You might be interested in
Where does much of Earth's internal heat come from?
stiks02 [169]
It comes from the core
8 0
3 years ago
Read 2 more answers
A compound is 57.1% oxygen and the remainder carbon. using oxygen as the standard (16 amu) and assuming a 1:1 atom ratio, calcul
Delicious77 [7]
Let's start with the amount given in percent. Let our basis be 100 grams of compound. So, that means that in this amount, 57.1 g is oxygen and 100-57.1=42.9 g is carbon. Since there is 1:1 atom ratio, it also means that moles oxygen = moles carbon.

Moles = Mass/Relative Mass
Let x be the relative mass of oxygen

57.1/16 = 42.9/x
Solving for x,
<em>x = 12.02 amu</em>
4 0
3 years ago
The electron configuration of an atom is 1s22s22p63s23p3. The atomic number of the atom is...
Leya [2.2K]

Answer:

im sorry, but im not sure

Explanation:

4 0
3 years ago
According to Le Chatelier’s principle, a system in chemical equilibrium responds to stress by shifting the equilibrium in a dire
shepuryov [24]

Answer:

its A reduces stress :)))

Explanation:

5 0
3 years ago
Read 2 more answers
What type of potential energy do fuels contain
NISA [10]
Kinetic energy maybe or something
6 0
3 years ago
Read 2 more answers
Other questions:
  • Calculate the mass percentage of the sulfate ion in MgSO4.
    13·1 answer
  • In a college of exactly 2760 students, exactly 65 % are male. What is the number of female students? Express your answer as an i
    8·1 answer
  • What happens when the wire in an electromagnet is wrapped around a soft iron core?
    15·2 answers
  • A sample of an ideal gas is cooled from 50.0°C to 25.0°C in a sealed container at constant volume.
    6·1 answer
  • calculate the amount of time required to rise the temperature of 0.50 liter of water from 0.0 c to 10.0 c if the energy is suppl
    12·1 answer
  • Given that a chlorine-oxygen bond has an enthalpy of 243 kJ/mol , an oxygen-oxygen bond has an enthalpy of 498 kJ/mol , and the
    5·1 answer
  • Which of the following statements best describes why electrons
    5·1 answer
  • An egg sinks in fresh water but it floats on salty water.why?​
    9·1 answer
  • How many valence electrons are found in a neutral atom of arsenic?
    9·1 answer
  • Various nitrogen oxides, as well as sulfur oxides, contribute to acidic rainfall through complex reaction sequences. Nitrogen an
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!