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Marta_Voda [28]
3 years ago
11

Which alkaline earth metal has the highest ionization energy? Refer to the periodic table.

Chemistry
2 answers:
Liula [17]3 years ago
4 0
I’m pretty sure the answer is Barium. I hope it helps.
Sedaia [141]3 years ago
4 0
If I’m not Mistaken I think it’s magnesium the farthest up and right

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Which phase has the greatest structure
Zina [86]
A the solid.
it’s solid because solid is harder than gas and liquid which makes it a greater structure
8 0
3 years ago
Which of the following are balanced equations? Check all that apply.
EleoNora [17]

Answer: the answer is b

Explanation:

because why not

8 0
2 years ago
How many moles are 7.25 x 1023 formula units of Mgo ?
romanna [79]

Answer:

<h2>The answer is option D</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L}  \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{7.25 \times  {10}^{23} }{6.02 \times  {10}^{23} }  =  \frac{7.25}{6.02}  \\  = 1.2043189368...

We have the final answer as

<h3>1.20 moles</h3>

Hope this helps you

6 0
2 years ago
Do you think lava or water formed the Chanel on Mars? And why? I’ll give brainliest
Kamila [148]

Answer:

A channel in an ancient Martian "river bed" was not carved out by liquid water but built by molten lava

6 0
2 years ago
PLEASE HELP!! I'LL MARK U BRAINIEST!! ALSO PLZ IF YOU CAN SHOW THE WORK
mel-nik [20]

Answer:

9.63×10²⁴ particles of H₂O

Explanation:

We'll begin by writing the balanced equation for the reaction. This is given below:

CH₄ + 2O₂ —> CO₂ + 2H₂O

From the balanced equation above,

1 mole of CH₄ reacted to produce 2 moles of H₂O.

Next, we shall determine the number of mole of H₂O produced by the reaction of 8 moles of CH₄. This can be obtained as follow:

From the balanced equation above,

1 mole of CH₄ reacted to produce 2 moles of H₂O.

Therefore, 8 moles of CH₄ will react to produce = 8 × 2 = 16 moles of H₂O.

Thus, 16 moles of H₂O were obtained from the reaction.

Finally, we shall determine the number of particles of H₂O produced. This can be obtained as follow:

Number of mole of H₂O produced = 16 moles

Number of particles produced =?

From Avogadro's hypothesis,

1 mole = 6.02×10²³ particles

Therefore,

16 mole = 16 mole × 6.02×10²³ particles / 1 mole

16 moles = 9.63×10²⁴ particles

Therefore, 9.63×10²⁴ particles of H₂O were produced.

6 0
3 years ago
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