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Marta_Voda [28]
3 years ago
11

If aluminum loses 3 electrons how do you write the ion

Chemistry
1 answer:
luda_lava [24]3 years ago
7 0
Since it has lost 3 electrons that means it now has excess protons of 3 protons.

So it is positive. You write it as:

Al³+.

The plus sign should be on the same line with the 3.
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Is relative dating an effective way to determine the age of rocks?
JulsSmile [24]

Answer: Read Explanation

Explanation: Index fossils are useful because they tell the relative ages of the rock layers in which they occur. Geologists use particular types of organisms, such as trilobites, as index fossils.

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3 years ago
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2H2 + O2 --&gt; 2 H2O<br> +<br> How many moles of oxygen is required to produce 13.3 moles of water?
LenKa [72]

Answer:

Explanation:

Let the number of moles of oxygen = x

2H2 + O2 --> 2 H2O

           x             13.3

Since the balance number for oxygen is 1 and the balance number for water is 2, you must set up a proportion. (Those balance numbers represent the number of moles).

1/x = 2 / 13.3                      Cross Multiply

2*x = 13.3                          Divide both sides by 2

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x = 6.65

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8 0
2 years ago
An oxygen atom has a mass of 2.66 x 10^-23 g and a glass of water has a mass of 0.050kg. Use this information to answer the ques
fomenos
<h2>ANSWER OF EACH PART ARE GIVEN BELOW</h2>

Explanation:

A)

We know, each mole contains N_A= 6.023 \times 10^{23} atoms.

It is given that mass of one oxygen atom is m= 2.66\times 10^{-23}\ g.

Therefore, mass of one mole of oxygen, M=m\times N_A.

Putting value of n and N_A,

M=2.66\times 10^{-23}\times 6.023\times 10^{23} \ gm\\M=16.0\ gm

B)

Given,

Mass of water in glass=0.050 kg = 50 gm.

From above part mass of one mole of oxygen atoms = 16.0 gm.

Therefore, number of mole of oxygen equivalent to 50 gm oxygen=\dfrac{50}{16}=3.1 \ moles.

LEARN MORE :

Avogadro's number

brainly.com/question/12902286

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3 years ago
Which is transferred due to a temperature difference?
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Answer:

A

Explanation:

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3 years ago
Help needed ASAP, I will mark your answer as brainliest.
beks73 [17]

Answer:

D

Explanation:

^

6 0
2 years ago
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