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
vlabodo [156]
3 years ago
8

Which one(s) below right about valence electrons?

Chemistry
2 answers:
PIT_PIT [208]3 years ago
7 0
Valence electrons are in the outermost area, have the highest energy, and are all electrons of the atom. This would be A,C and D. B might be a variable, as the Alkali Metals are highly unstable.
Electrons described by E are in Ground State.
grandymaker [24]3 years ago
3 0
Answer choice A, B, and C is right about the valence electrons. For answer choice D and E, Would in it be a more of an element kind of choice. whether the element is closer to the left side of the periodic table or not determines the high and low energy.
You might be interested in
The air in a living room has a mass of 60 Kg and a specific heat of 1,020 J/kg°C. What is the change in thermal energy of the ai
arlik [135]

Answer:

Q = 306 kJ

Explanation:

Given that,

Mass, m = 60 kg

Specific heat, c = 1020 J/kg°C

The temperature changes from 20°C to 25°C.

Let Q be the change in thermal energy. The formula for the heat released is given by :

Q=mc\Delta T

Put all the values,

Q=60\times 1020\times (25-20)\\\\Q=306000\ J\\\\or\\\\Q=306\ kJ

So, 306 kJ is the change in thermal energy.

4 0
3 years ago
How many major Foods or food groups accounts for 90% of food allergens?​
kow [346]

Answer:

Eight foods are responsible for 90 percent of all reactions: peanut, tree nut, milk, egg, fish, shellfish, soy, and wheat.

hope it helped

6 0
3 years ago
I WILL GIVE YOU BRAILEST!!!!!!!!!
Sholpan [36]

Answer:

D.

atomic modifier

Explanation:

. Identify at least three reasons the Articles of Confederations failed as a governing document. In your opinion, evaluate which defect was most debilitating, using evidence and your knowledge of American government to justify your position. [5]

6 0
3 years ago
Read 2 more answers
Chlorine + sulfur dioxide + water = hydrochloric acid + sulfuric acid​
scZoUnD [109]

The given example is a chemical reaction.

The contents (separated as reactants and products) :

\begin{tabular}{c | l}Reactants & Products \\\cline{1-2}Chlorine & Sulfuric Acid \\Water & Hydrochloric Acid \\Sulfur Dioxide & \\\end{tabular}

The written reaction is :

\boxed {Cl + SO_{2} + H_{2}O \implies HCl + H_{2}SO{4}}

<em>I hope it helped you solve the problem.</em>

<em>Good luck on your studies!</em>

7 0
2 years ago
A mixture of methanol and methyl acetate contains 15.0 wt% methanol.
Usimov [2.4K]

The mixture flow rate in lbm/h = 117.65 lbm/h

<h3>Further explanation</h3>

Given

15.0 wt% methanol

The flow rate of the methyl acetate :100 lbm/h

Required

the mixture flow rate in lbm/h

Solution

mass of methanol(CH₃OH, Mw= 32 kg/kmol) in mixture :

\tt 15\%\times 200~kg=30~kg\\\\mol=\dfrac{mass}{MW}=\dfrac{30~kg}{32~kg/kmol}=0.9375~kmol

mass of the methyl acetate(C₃H₆O₂,MW=74 kg/kmol,85% wt) in 200 kg :

\tt 85\%\times 200=170~kg\\\\mol=\dfrac{170}{74}=2.297~kmol

Flow rate of the methyl acetate in the mixture is to be 100 lbm/h.

1 kg mixture = 0.85 .methyl acetate

So flow rate for mixture :

\tt \dfrac{1~kg~mixture}{0.85~methyl~acetat}\times 100~lbm/h=117.65~lbm/h

5 0
3 years ago
Other questions:
  • The reaction PCl3(g)+Cl2(g)???PCl5(g)
    6·2 answers
  • Balance the below half-reaction, which takes place in acidic solution. cr2o72−(aq) → cr3 (aq) how many electrons are transferred
    5·1 answer
  • Which of the following is a compound? A brass, B rust, C iron, D steel. please explain
    6·2 answers
  • Help me ASAP!!!!!!!!!!!!!!!!!!!!
    7·1 answer
  • A solution is prepared by dissolving 60.0 g of sucrose, C12H22O11, in 250. g of water at 25°C. What is the vapor pressure of the
    13·1 answer
  • Sodium+cloride what is the moleculat mass​
    13·2 answers
  • Multiply the following: (1.25 x 10^15) x (3.75 x 10^5).
    11·1 answer
  • The breaking of _____________________ bonds in food releases energy for your body to use.
    7·1 answer
  • What is the formula for Tetrachlorine pentaiodide
    7·1 answer
  • . A compound is composed of 2 atoms of Copper, 1 atom of Sulfur and 4 atoms of Oxygen. What
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!