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
AfilCa [17]
3 years ago
10

Please help I have chemistry final​

Chemistry
2 answers:
guajiro [1.7K]3 years ago
7 0

Answer:

Tick

1

2

4

6

Explanation:

magnesium is not a good conductor has some free electrons but it is not used that much in the industries because of other better alternatives.

You can tick number 5 as wlee. Good luck

jok3333 [9.3K]3 years ago
3 0

Answer:

the answer is a

Explanation:

it'sa silver-white an earth metal

You might be interested in
Which of these is NOT a unit of pressure<br><br> psi<br> atm<br> mm<br> Torr
Alexxx [7]
I think mm is not a unit of pressure
7 0
3 years ago
Calculate delta Gº for the following system:
Llana [10]

Answer:

ΔG = - 442.5  KJ/mol    

Explanation:

Data Given

delta H = -472 kJ/mol

delta S = -108 J/mol K

So,

delta S = -0.108 J/mol K

delta Gº = ?

Solution:

The answer will be calculated by the following equation for the Gibbs free energy

                    G = H - TS

Where

G = Gibbs free energy

H = enthalpy of a system (heat

T = temperature

S = entropy

So the change in the Gibbs free energy at constant temperature can be written as

                ΔG = ΔH - TΔS . . . . . . (1)

Where

ΔG = Change in Gibb’s free energy

ΔH = Change in enthalpy of a system

ΔS = Change in entropy

if system have standard temperature then

T = 273.15 K

Now,

put values in equation 1

                  ΔG = (-472 kJ/mol) - 273.15 K (-0.108 KJ/mol K)

                 ΔG = (-472 kJ/mol) - (-29.5 KJ/mol)

                 ΔG = -472 kJ/mol + 29.5 KJ/mol

                 ΔG = - 442.5  KJ/mol          

7 0
3 years ago
How do properties of matter help us choose the best material for the job? Use examples.
Bumek [7]

Answer: Another property that can help us identify matter is solubility. ... Knowing the properties of matter can help you pick the right materials for the job.

Explanation: You often use the properties of a substance to identify it. For example, when you reach into your pocket, you can tell the difference between a ticket stub and a folded piece of tissue because one is stiff and smooth and the other is soft.

8 0
2 years ago
What is the name of this hydrocarbon?
NikAS [45]
The simplest Organic compounds are made up of only Carbon and Hydrogenatoms only. Compounds of Carbon andHydrogen only are called Hydrocarbons. The simplest Hydrocarbon is methane, CH4.
6 0
3 years ago
Since atoms have more than one electron (other than atomic hydrogen) how do you account for the electrons remaining associated w
WARRIOR [948]
Answer: the electrons remain around the atomic nuclei due to the existence of a positive charge on the nuclei that, of course, atract the negative charged electrons. The protons are the paricles in the nuclei that hold the positive charge.

Justification:

First, I wish to explaing the sense of the question. The question arises because given that the electrons have negative electric charge how is that they do not repeal each other to the point that they end leaving the nucleous of the atom alone.

This is you know that equal charges repel each other, so how is it that the electrons stand around the nucleous instead of separateing and levaing the atomic nucleous alone.

The answer is due to the existence of a positive charge on the nuclei that, of course, atract the negative charged electrons. That positive charge is the protons.

The protons are particles in the atomic nuclei that are positive charged and they exert the right attractive force upon the electrons to permit them stay in the orbitals (regions of the space around the nuclei of the atoms where the electrons are found).



8 0
3 years ago
Other questions:
  • Calculate the pH and fraction of dissociation ( α ) for each of the acetic acid ( CH 3 COOH , p K a = 4.756 ) solutions. A 0.002
    11·1 answer
  • Regarding the vaporization of water, which of the following is true? A. A great deal of heat must be lost by water to form hydro
    14·2 answers
  • Which of the following represents the chemical reaction of boron trichloride and water to produce boric acid and hydrochloric ac
    12·2 answers
  • To break a chemical bond, particles need to collide with a certain amount of ____?
    6·2 answers
  • CHEM HELP ASAP!! <br><br> What mass of H2 would be needed to produce 208 kg of methanol?
    8·1 answer
  • Which of the following particles of atoms will, when added, only change the overall charge of
    7·1 answer
  • What is the answer please help
    8·1 answer
  • Which of the following is the best example of an object absorbing light? A black sweater in the sun
    8·1 answer
  • When elements form bonds, it changes their ______ properties.<br>The answer is..? ​
    11·1 answer
  • Brainliest for an answer!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!