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
bija089 [108]
2 years ago
6

A plate of the steel hull of a ship develops a large crack when the ship strikes a reef. Analysis of the steel’s composition sho

ws higher-than-normal levels of an element that could explain why the plate cracked instead of bending. Which element is most likely suspected? iron sulfur chromium nickel '
Chemistry
2 answers:
motikmotik2 years ago
8 0
Probably Sulfur, low mp and hardness compared to the other metals
amid [387]2 years ago
5 0

sulfur ----- is the answer

You might be interested in
How many moles of NaCl are present in 2.50 L of a 0.070 M solution?
posledela

Given :

Volume of NaCl solution 2.5 L .

Molarity of NaCl solution is 0.070 M .

To Find :

How many moles are present in the solution.

Solution :

Let, n be the number of moles.

We know, molarity is given by :

M = \dfrac{n}{V(in\ L)}

So,

n = M \times V\\\\n = 0.070\times 2.5 \\\\n = 0.175\ moles

Therefore, number of moles of NaCl is 0.175 moles.

6 0
3 years ago
Consider the following reaction: CO(g)+2H2(g)⇌CH3OH(g) Kp=2.26×104 at 25 ∘C. Calculate ΔGrxn for the reaction at 25 ∘C under eac
valentinak56 [21]

Answer : The value of \Delta G_{rxn} is, 8.867kJ/mole

Explanation :

The formula used for \Delta G_{rxn} is:

\Delta G_{rxn}=\Delta G^o+RT\ln Q   ............(1)

where,

\Delta G_{rxn} = Gibbs free energy for the reaction

\Delta G_^o =  standard Gibbs free energy

R = gas constant = 8.314 J/mole.K

T = temperature = 25^oC=273+25=298K

Q = reaction quotient

First we have to calculate the \Delta G_^o.

Formula used :

\Delta G^o=-RT\times \ln K_p

Now put all the given values in this formula, we get:

\Delta G^o=-(8.314J/mole.K)\times (298K)\times \ln (2.26\times 10^{4})

\Delta G^o=-24839.406J/mole=-24.83\times 10^3J/mole=-24.83kJ/mole

Now we have to calculate the value of 'Q'.

The given balanced chemical reaction is,

CO(g)+2H_2(g)\rightarrow CH_3OH(g)

The expression for reaction quotient will be :

Q=\frac{(p_{CH_3OH})}{(p_{CO})\times (p_{H_2})^2}

In this expression, only gaseous or aqueous states are includes and pure liquid or solid states are omitted.

Now put all the given values in this expression, we get

Q=\frac{(1.4)}{(1.2\times 10^{-2})\times (1.2\times 10^{-2})^2}

Q=8.1\times 10^{5}

Now we have to calculate the value of \Delta G_{rxn} by using relation (1).

\Delta G_{rxn}=\Delta G^o+RT\ln Q

Now put all the given values in this formula, we get:

\Delta G_{rxn}=-24.83kJ/mole+(8.314\times 10^{-3}kJ/mole.K)\times (298K)\ln (8.1\times 10^{5})

\Delta G_{rxn}=8.867\times 10^3J/mole=8.867kJ/mole

Therefore, the value of \Delta G_{rxn} is, 8.867kJ/mole

3 0
2 years ago
Does anyone know how to do this???
Bond [772]
Simply look at the periodic table and fill in what you know based on the table

The number of protons = atomic number
The number of electrons, Which is the same as the atomic number for atoms.

The number of valence electrons that is given by the group that the element is in, the top number of each column in the periodic table.







8 0
3 years ago
Which statement supports one of Dalton's contributions to the atomic theory?
Mnenie [13.5K]
<span>C) The element nitrogen is made up of carbon and nitrogen</span>
6 0
3 years ago
Read 2 more answers
Which of the following showing the Law of Conservation of Mass?
Stells [14]
The only one I know for sure is Mass is always conserved In a Chemical reaction.
7 0
3 years ago
Read 2 more answers
Other questions:
  • Weak acids are poor conductors of:
    5·1 answer
  • How are fireworks made ?
    12·1 answer
  • Can anyone tell me about sulfuric acid in shampoo/soap?
    14·1 answer
  • Which conclusion could be made from Ernest Rutherford's gold foil experiment?
    13·2 answers
  • The alkali metal that is naturally radioactive is ________.
    8·1 answer
  • 1.which of newton's laws describe the mathematical relationship between force, mass, and acceleration
    14·1 answer
  • Which of the following represents C3H8?​
    10·1 answer
  • How many molecules are present in this formula? 3H2 (SO)4
    14·1 answer
  • Hi, im really confused can someone help
    5·1 answer
  • Using the periodic table only, arrange the members of each of the following sets in order of increasing bond strength:
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!