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
andrey2020 [161]
3 years ago
7

HELP ME I WILL GIVE YOU 50 POINTS AND MAKE YOU BRAINIEST

Chemistry
2 answers:
Ivenika [448]3 years ago
7 0
They have the same amount of valence electrons, which dictates reactibility
hoa [83]3 years ago
5 0

THEY ARE ALL NONMETALS ARE THE CORRECTA NSWER


You might be interested in
What is the molarity if 16. 0 grams of NaOH is dissolved in 855 mL of solution?
DiKsa [7]

Answer:

734.0 grams

Explanation:

Because 16.0 and 855 mL it is 734.0 grams :) hope it helps

4 0
2 years ago
Anna stated that ionic compounds have high melting points and low boiling points. She said that this demonstrates that ionic com
Ainat [17]

Answer:

The answer to your question is: letter A

Explanation:

a.Strong electrical forces will make ionic compounds have high boiling points.  This option is correct because ionic bonds are strong which makes substances have high boiling points.

b.Strong electrical forces will make ionic compounds have weak bonds.  This option is false, ionic compounds have strong bonds.

c.A low amount of energy is needed to break the bonds in ionic compounds.  The high amount of energy is needed to break ionic bonds.

d.Gravitational forces hold the bonds together in ionic compounds. Gravitational forces do not affect the ionic compounds.

8 0
3 years ago
Read 2 more answers
Please answer this question ASAP. This is on a homework assignment that is due tonight!! Thank you in advance! A voltaic cell em
worty [1.4K]
Ecell = E°cell - RT/vF * lnQ

R is the gas constant: 8.3145 J/Kmol
T is the temperature in kelvin: 273.15K = 0°C, 25°C = 298.15K
v is the amount of electrons, which in your example seems to be six (I'm not totally sure)
F is the Faradays constant: 96485 J/Vmol (not sure about the mol)
Q is the concentration of products divided by the concentration of reactants, in which we ignore pure solids and liquids: [Mg2+]³ / [Fe3+]²

Standard conditions is 1 mol, at 298.15K and 1 atm

To find E°cell, you have to look up the reduction potensials of Fe3+ and Mg2+, and solve like this:

E°cell = cathode - anode

Cathode is where the reduction happens, so that would be the element that recieves electrons. Anode is where the oxidation happens, so that would be the element that donates electrons. In your example Fe3+ recieves electrons, and should be considered as cathode in the equation above. 

When you have found E°cell, you can just solve with the numbers I gave you. 
7 0
3 years ago
Read 2 more answers
A gas under a pressure of 74 mmHg and at a temperature of 75°C occupies a 500.0-L container. How many moles of gas are in the co
Leona [35]

Answer : The number of moles of gas present in container are 1.697 mole.

Explanation :

Using ideal gas equation,

PV=nRT

where,

P = pressure of gas = 74 mmHg = 0.097 atm

conversion used : (1 atm = 760 mmHg)

V = volume of gas = 500.0 L

T = temperature of gas = 75^oC=75+273=348K

n = number of moles of gas = ?

R = gas constant = 0.0821 L.atm/mole.K

Now put all the given values in the ideal gas equation, we get the number of moles of gas in the container.

(0.097atm)\times (500.0L)=n\times (0.0821L.atm/mole.K)\times (348K)

n=1.697mole

Therefore, the number of moles of gas present in container are 1.697 mole.

4 0
3 years ago
How many molecules of oxygen are produced when a sample of 38.9 g of water is decomposed by electricity?
statuscvo [17]

Answer:

A) 6.5\times 10^{23}\ \text{molecules}

Explanation:

m = Mass of water = 38.9

M = Molar mass of water = 18 g/mol

N_A = Avogadro's number = 6.022\times 10^{23}\ \text{mol}^{-1}

The reaction of electrolysis would be

2H_2O(l)\rightarrow 2H_2(g)+O_2(g)

Number of moles of H_2O

n=\dfrac{m}{M}\\\Rightarrow n=\dfrac{38.9}{18}\ \text{mol}

From the reaction it can be seen that 2 moles of H_2O gives 1 mole of O_2

So, number of moles of O_2 produced is

\dfrac{38.9}{18}\times \dfrac{1}{2}=1.081\ \text{mol}

Number of molecules

1.081N_A=1.081\times 6.022\times 10^{23}\\ =6.5\times 10^{23}

So, 6.5\times 10^{23}\ \text{molecules} of oxygen is produced.

8 0
3 years ago
Other questions:
  • Give a possible molecular formula for the empirical formula of c3h5clo.
    12·1 answer
  • For a hydrogen atom, which electronic transition would result in the emission of a photon with the highest energy?
    11·1 answer
  • From where in the solar system did scientists conduct their spectral analyses in
    7·1 answer
  • What are the reactants and products of fermentation?
    11·1 answer
  • Stearic acid (C18H36O2) is a fatty acid, a molecule with a long hydrocarbon chain and an organic acid group (COOH) at the end. I
    11·1 answer
  • What is mostly made out of rock and metal with no gas or dust?
    8·1 answer
  • Ammonium sulfate, an important chemical fertilizer, can be prepared by the reaction of ammonia with sulfuric acid according to t
    15·1 answer
  • Put the following elements in order of decreasing (from largest to smallest) atomic radius: Be, Ba, F, Ca.
    11·1 answer
  • This illustration shows a kind of animal that is a free living organism. what is the common name of this organism?
    14·1 answer
  • The 2 oxygen atoms forming molecules of oxygen gas that you breathe are joined by a polar covalent bond. explain why this statem
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!