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Lana71 [14]
1 year ago
9

Please help..

Chemistry
1 answer:
Hoochie [10]1 year ago
8 0

Answer:

1.

Explanation:

Let's start with the hydrogen. If we have 4 grams of hydrogen, it would be enough for 4 * 9 = 36 grams of water. Well, that can't be possible ...

4 votes

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Calculate the pressure, in atmospheres, required to compress a sample of helium gas from 27.3 L (at 1.00 atm) to 3.36 L at const
inn [45]

Answer:

8.125 atm

Explanation:

Hello,

Boyle's law states that at constant temperature:

P_1V_1=P_2V_2

In this case:

P_1=1 atm, V_1=27.3L, V_2=3.36L

Solving for P_2:

P_2=\frac{P_1V_1}{V_2}=\frac{1atm*27.3L}{3.36L}\\P_2=8.125atm

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4 0
3 years ago
Aqueous solutions of hydrochloric acid and barium hydroxide can neutralize each other to produce a compound that is soluble in w
SpyIntel [72]

Answer:

Ba^2+ = Barium ion [Cation]

Cl-= Chloride ion  [Anion]

Explanation:

Ba(OH)2 + HCl = BaCl2 + H2O is the reaction that happens.

You make an ionic compound which is soiuble in water Barium Chloride. The cation is Ba^2+ = Barium ion, Cl^ - = Chloride ion

Postive ions are cations and negative ions are anions thus

Ba^2+ = Barium ion [Cation]

Cl-= Chloride ion  [Anion]

5 0
3 years ago
The complete orbital notation diagram of an atom is shown.
Elan Coil [88]

values of the quantum numbers: -6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6

location of the electron: In the 7th energy level away from the nucleus.

Explanation:

From the description of the problem, the magnetic number is given is as -6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6 and the electron is located in the 7th energy level away from the nucleus. Basically, the problem is testing for the understanding of the principal quantum numbers which gives the location of electrons and the magnetic quantum number that shows the spatial orientation of the orbitals.

           The orbital designation of the describe electron is 7d

  1. Magnetic quantum number is limited by the azimuthal quantum number which is the quantum number describing the possible shapes. The azimuthal is given as L= n-1. "n" is the principal quantum number which is 7. Therefore L is 6 and the magnetic quantum numbers are -6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6
  2. The position of the electron is given by the principal quantum number which represents the main energy level in which the orbital is located or the average distance from the nucleus. Here it is 7.

Learn more:

brainly.com/question/9288609

#learnwithBrainly

5 0
3 years ago
Which of the following is not true of alloys?
Scilla [17]
Option d: copper.

Because copper is an element, not a mixture.

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All matter has thermal energy because atoms are constantly
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The atoms are constantly in motion
3 0
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