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3 years ago

Help me with 6 plzzz is it a b c or d??

Chemistry

2 answers:

ser-zykov [4K]3 years ago

6 0

Hi there!
Answer:
It´s C) Magma is found below Earth´s surface and lava is found above Earth´s surface.
Hope this helps you!
I would appreciate it if you marked me as brainliest! ;)
-Arianna.

Lelu [443]3 years ago

3 0

The answer is C, good luck mate

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Which of the following violates the Aufbau principle?

kondor19780726 [428]

E and B

Explanation:

The last option violates Aufbau's principle.

Aufbau's principle states that "the sublevels with lower energies are filled up before those with higher energies."

This implies that orbitals are not filled based on numerical order but on their energy levels.

The order is as follows;

1s 2s 2p 3s 3p 4s 3d e.t.c

In B, the 3s was not filled before jumping to 3p

In E, 3p was not filled before jumping to 3d and 3d was not even the next orbital.

learn more:

Atomic orbital brainly.com/question/1832385

#learnwithBrainly

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2 years ago

What is the mass of a gold bar that is 7.379*10^-4 m^3 in volume?

NISA [10]

Mass to volume
M^3 --> cm^3
Cm^3 --> mL
Centi = 10*-2
7.379*10-4 / 1*10-2 = .07379

8 0

3 years ago

I give brainiest if u help <br> Need help with 1 and 2a

Alekssandra [29.7K]

Explanation:

fancy number to a delocalized electrons are electrons that move randomly throughout the metallic structure

6 0

2 years ago

Read 2 more answers

Empirical formula for 6. 63.52% Fe, 36.48% S

emmasim [6.3K]

The empirical formula for this would be FeS

8 0

2 years ago

New questionWhat mass of calcium chloride (CaCl₂) would beproduced from the reaction of 125.9 g of hydrochloriacid (HCI) with ex

marshall27 [118]

Answer:

191.6 g of CaCl₂.

Explanation:

What is given?

Mass of HCl = 125.9 g.

Molar mass of CaCl₂ = 110.8 g/mol.

Molar mass of HCl = 36.4 g/mol.

Step-by-step solution:

First, we have to state the chemical equation. Ca(OH)₂ react with HCl to produce CaCl₂:

$Ca(OH)_2+2HCl\rightarrow CaCl_2+2H_2O.$

Now, let's convert 125.9 g of HCl to moles using the given molar mass (remember that the molar mass of a compound can be found using the periodic table). The conversion will look like this:

$125.9\text{ g HCl}\cdot\frac{1\text{ mol HCl}}{36.4\text{ g HCl}}=3.459\text{ moles HCl.}$

Let's find how many moles of CaCl₂ are being produced by 3.459 moles of HCl. You can see in the chemical equation that 2 moles of HCl reacted with excess Ca(OH)₂ produces 1 mol of CaCl₂, so we state a rule of three and the calculation is:

$3.459\text{ moles HCl}\cdot\frac{1\text{ mol CaCl}_2}{2\text{ moles HCl}}=1.729\text{ moles CaCl}_2.$

The final step is to find the mass of CaCl₂ using the molar mass of CaCl₂. This conversion will look like this:

$1.729\text{ moles CaCl}_2\cdot\frac{110.8\text{ g CaCl}_2}{1\text{ mol CaCl}_2}=191.6\text{ g CaCl}_2.$

The answer would be that we're producing a mass of 191.6 g of CaCl₂.

4 0

10 months ago