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
yawa3891 [41]
3 years ago
13

What is a group of electrons orbiting at roughly the same distance from the nucleus

Chemistry
1 answer:
Alex Ar [27]3 years ago
5 0
A shell of electrons.
You might be interested in
five years ago, my grandfather was five times as old as I was. Three years from now, my grandfather will be three times as old a
lakkis [162]
You never told us how old you are so how are we supposed to answer
7 0
3 years ago
Read 2 more answers
Why can’t you perform single displacement reactions with group IA metals?
pishuonlain [190]
Answer is: because alkaline metals (group IA metals) are the strongest reducing agents and most reactive metals.
Reducing agent<span> is an element  or compound that loses an </span>electron<span> to another </span>chemical species<span> in a </span>redox <span>chemical reaction and they have been oxidized.
Alkaline metals tend to lose only one electron in redox reaction.</span>
5 0
3 years ago
Consider the perbromate anion. What is the central atom? Enter its chemical symbol. How many lone pairs are around the central a
Yanka [14]

Answer:

See explanation

Explanation:

The central atom in the perbromate ion is bromine. The chemical symbol of bromine is Br. There are no lone pairs around the central bromine atom. The ion is tetrahedral in shape hence we expect a bond angle of 109°. 27 which is the ideal tetrahedral bond angle. The actual bond angle of the prebromate ion is 109.5°. The perbromate ion is BrO4^-

The observed bond angle is very close to the ideal value because of the absence of lone pairs of electrons from the central atom in the ion.

8 0
3 years ago
How many liters of oxygen gas, at standard temperature and pressure, will react with 25.0 grams of magnesium metal? Show all of
love history [14]
Given:
2 Mg + O2 → 2 MgO 
So,
<span>(25.0 g of Mg / 24.3051 g/mole) x (1/2) x (22.4 L/mole) = 11.5 L  of Oxygen will react with 25 grams of magnesium metal.</span>
8 0
3 years ago
Read 2 more answers
Calculate the ph of a solution formed by mixing 200.0 ml of 0.30 m hclo with 300.0 ml of 0.20 m kclo. the ka for hclo is 2.9 × 1
velikii [3]
C(HClO) = 0,3 M.
<span>V(HClO) = 200 mL = 0,2 L.
n(HClO) = </span>c(HClO) · V(HClO).
n(HClO) = 0,06 mol.<span>
c(KClO</span>) = 0,2 M.
<span>V(KClO) = 0,3 L.
n(KClO) = 0,06 mol.
V(buffer solution) = 0,2 L + 0,3 L = 0,5 L.
ck</span>(HClO) = 0,06 mol ÷ 0,5 L = 0,12 M.
cs(KClO) = 0,06 mol ÷ 0,5 L = 0,12 M.<span>
Ka(HClO</span>) = 2,9·10⁻⁸.<span>
This is buffer solution, so use Henderson–Hasselbalch equation: 
pH = pKa + log(cs</span> ÷ ck).<span>
pH = -log(</span>2,9·10⁻⁸) + log(0,12 M ÷ 0,12 M).<span>
pH = 7,54 + 0.
pH = 7,54</span>
6 0
3 years ago
Other questions:
  • Which tool was most likely used in a procedure if the lab report shows that approximately 300ml of water was used
    10·1 answer
  • What is transpiration
    12·2 answers
  • How would the equilibrium change if NO2 were added to SO2(g) + NO2(g) NO(g) + SO3(g) + heat?
    8·2 answers
  • Phosphine, PH₃, is a colorless, toxic gas that is used in the production of semiconductors as well as in the farming industry. W
    10·1 answer
  • What is extremely lightweight and exists in a cloud orbiting the nucleus
    11·2 answers
  • The equilibrium constant for the reaction below, at a given temperature is 45.6. If the equilibrium concentrations of F2 and BrF
    11·1 answer
  • Ammonia (NH3) can be synthesized from nitrogen gas (N2) and hydrogen gas (H2) by the following reaction.
    5·1 answer
  • Atoms of noble gases are generally inert because..
    8·1 answer
  • Discuss the phenomena of sunrise and sunset seen on Earth and describe how they will be different from the perspective of outer
    15·1 answer
  • From carbon dioxide, hydrogen, maltose, and ammonia which one is the largest
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!