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
uranmaximum [27]
3 years ago
14

What is the electron configuration for an electrically neutral atom of beryllium (Be)?

Chemistry
1 answer:
irakobra [83]3 years ago
8 0

Answer:

1s²2s2

Explanation:

that's the correct brainliest answer and D

You might be interested in
I need a answer quick. PLEASE<br><br>What is the volume of 2.43 x 1023 molecules of N2 gas at STP?
Readme [11.4K]
I think it is 2485.89.
6 0
3 years ago
A chemistry student adds a quantity of an unknown solid compound X to 5.00 L of distilled water at 15.° C . After 10 minutes of
Yuliya22 [10]

Answer:

34 g/100 mL

Explanation:

The solubility of a compound can be expressed in g/100mL, for this we must divide the mass of the compound that dissolves in the solute by the volume of the solvent.

The solvent, in this case, is water, and that mass of the solute X that dissolved is the mass that was recovered after the solvent was drained and evaporated. So the solubility of X (S) is:

S = 0.17 kg/5L

S = 170g/5000mL

S = 170g/(5*1000)mL

S = 34 g/100 mL

8 0
2 years ago
What is the mass of 3.00 moles of magnesium chloride, MgCl2? Express your answer with the appropriate units.
xenn [34]
<span>To find the mass of 3.00 moles of magnesium chloride (MgCl2), first record the atomic mass of magnesium (Mg) and chloride (Cl), which are both listed on the periodic table as follows: Mg=24 g/mole Cl=38 g/mole Now, double the Cl mass since there are 2 Cl moles in MgCl2 and then add it to the Mg mass like so: (38 g/mole*2 moles)+24 g/mole=100 g/mole Finally, to calculate the mass of 3.00 moles of MgCl2, convert the combined atomic mass to grams as follows: 3.00 moles * 100 g/mole = 300 g</span>
5 0
3 years ago
Sunlight is composed of energy that is visible to humans and energy that is not visible to humans. Which statement describes how
Vilka [71]

Answer:

A

both forms of energy referred to in the question is light and heat energy

light energy is the visible energy that travels at a known constant speed of 3.0×10^9m/s

while heat energy is the invisible energy that travels in form of radiation at variable speeds

4 0
2 years ago
How many grams of potassium sulphate are formed when 49g of sulphuric acid in solution are neutralised by potassium hydroxide?
Katena32 [7]
C - keep counting to the atoms
6 0
2 years ago
Other questions:
  • A sample of H2SO4 contains 2.02 g of hydrogen, 32.07 g of sulfur, and 64.00 g of oxygen. How many grams of sulfur and grams of o
    13·1 answer
  • Suppose you start with a solution of red dye #40 that is 3.1 ✕ 10−5 M. If you do four successive volumetric dilutions pipetting
    6·1 answer
  • Define matter as a science topic<br>​
    7·2 answers
  • Jack was playing with a toy car and a track that records velocity over time using sensors and it generated the graph below:
    14·1 answer
  • When does cell growth occur
    6·2 answers
  • LOS GASES NOBLES TAMBIÉN SE COMBINAN<br><br> EN EL ESPACIO
    5·1 answer
  • What can you coil and make a solenoid have an even stronger field? *
    6·1 answer
  • Is college worth it
    6·2 answers
  • What is the noble gas configuration for copper
    12·1 answer
  • The following graphs show average temperature data for two locations. Both locations have the same elevation. What is most likel
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!