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djyliett [7]
3 years ago
10

Can anyone do these? or even just help .. It is urgent and I've put up all of my points. I've been able to complete everything e

lse but this and I'm stuck.

Chemistry
1 answer:
Lorico [155]3 years ago
7 0
A3B2
bond is ionic 
A is in group 2 (you can pick any like Ca)
B is in group 5 (like B)
the other question:
the reason is they are neutral gas and they already have 8 electrons except for He which is 2 and are completely stable so don't want to loose any electron vs Li and Na which have only 1 electron in the outer layer and are willing to loose that one to become stable. 


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What volume of nitrogen (n2) would be completely consumed in the reaction with 30.80 g of
Shtirlitz [24]

The answer is 285.33g nitrogen would be completely consumed in the reaction with 30.80 g of hydrogen gas.

<h3>What is a mole ?</h3>

A mole is defined as 6.02214076 × 10²³ atoms, molecules, ions, or other chemical units.

Write a balanced equation.

Calculate the moles of H₂ in 30.8 g.

Calculate the moles of N₂ required to react with H₂.

Calculate the mass of N₂.

Calculate the initial mass of N₂.

Start with a balanced equation.

N₂ + 3H₂ --> 2NH₃

Calculate the moles of H₂ in 30.8 g.

n = m/M; where n = moles, m = mass, and M = molar mass.

M(H₂) = 1.008 g/mol

n(H₂) = (30.8 g)/(1.008 g/mol) = 30.56 mol H₂

Calculate the moles of N₂ required to react with 30.56 mol H₂ , using the mole ratio between H₂ and N₂ in the balanced equation.

30.56 mol H₂ × 1 mol N₂/3 mol H₂ = 10.18 mol N₂

Calculate the mass of N₂ in 10.18 mol.

m = n × M

M(N₂) = 2 × 14.007 g/mol N = 28.014 g/mol N₂

m(N₂) = 10.18 mol × 28.014 g/mol = 285.33g N₂

Therefore 285.33g nitrogen would be completely consumed in the reaction with 30.80 g of hydrogen gas.

To know more about mole

brainly.com/question/26416088

#SPJ1

5 0
2 years ago
Below is a list of the first 10 residues of the B helix in myoglobin from different organisms.
max2010maxim [7]

Answer:

i dont knoiwxplanation:

8 0
3 years ago
A purple rock as a mass of 316 grams and a density of 5.9 g/mL. Determine the volume of this rock in mL.
MakcuM [25]

Answer:

The answer is

<h2>53.56 mL</h2>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

volume =  \frac{mass}{density}  \\

From the question

mass of rock = 316 g

density = 5.9 g/mL

The volume of the rock is

volume =  \frac{316}{5.9}  \\  = 53.5593220...

We have the final answer as

<h3>53.56 mL</h3>

Hope this helps you

5 0
3 years ago
A compound was found to be soluble in water. It was also found that addition of acid to an aqueous solution of this compound res
quester [9]

A compound was found to be soluble in water. It was also found that addition of acid to an aqueous solution of this compound resulted in the formation of carbon dioxide. Which one of the following cations would form a precipitate when added to an aqueous solution of this compound?

Options

a. NH4

b. K

c. Cr

d. Rb

e. Na

Answer: c: Cr

Explanation:

The aforementioned reaction are banters for to distract ones focus from the question.

However it should be noted that

Cr can be found in tannery waste water showing that it can be soluble in water.

The carbonate compound when reacting with acid CO_2 evolves.

Focusing on the cation that would form a precipitate when added to an aqueous solution.

Chemical precipitation method is a common method for to remove chromium and to recover it from  tannery wastewater.

Cr would form a precipitate.

3 0
3 years ago
What coefficients do you need to balance the following equation Rb, P, Rb3P
expeople1 [14]

Answer:

3,1,1 would work

Explanation:

4 0
3 years ago
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