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mash [69]
3 years ago
10

What is the lewis dot structure for Ca3P2 and Al2O3?

Chemistry
1 answer:
zlopas [31]3 years ago
3 0

Answer:

The atomic number of the sodium atom is 11. The atomic mass number can be estimated by rounding the atomic mass to 23.

Explanation:

The atomic number of the sodium atom is 11. The atomic mass number can be estimated by rounding the atomic mass to 23.

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How do we know that air we breathe is matter?
Viefleur [7K]
Because all matter has density and since air has density then air is matter and plus EVERYTHING is made of matter
6 0
3 years ago
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An object on top of a building has a GPE of 23,048j and a mass of 39kg, What is the height of the object
kirill115 [55]

Answer:

<h2>59.1 m</h2>

Explanation:

The height of the object can be found by using the formula

h =  \frac{p}{mg }  \\

where

p is the potential energy

m is the mass

h is the height

g is the acceleration due to gravity which is 10 m/s²

From the question we have

h =  \frac{23048}{39 \times 10}  =  \frac{23048}{390}  \\  = 59.0974...

We have the final answer as

<h3>59.1 m</h3>

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3 0
2 years ago
PLEASE HELP! sketch the structure of the nitrogen-containing product that is formed when ethylamine reacts with water​
Aleksandr [31]

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In the picture you may see the chemical equation and the structure of the products.

5 0
3 years ago
If you have 16 g of manganese (II) nitrate tetrahydrate, how much water is required to prepare 0.16 M solution from this amount
nirvana33 [79]

<u>Answer:</u> The volume of water required is 398 mL

<u>Explanation:</u>

To calculate the molarity of solution, we use the equation:

\text{Molarity of the solution}=\frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution (in mL)}}

We are given:

Mass of solute (manganese (II) nitrate tetrahydrate) = 16 g

Molar mass of manganese (II) nitrate tetrahydrate = 251 g/mol

Molarity of solution = 0.16 M

Putting values in above equation, we get:

0.16M=\frac{16g\times 1000}{251g/mol\times \text{Volume of solution}}\\\\\text{Volume of solution}=398mL

Hence, the volume of water required is 398 mL

7 0
3 years ago
Ethanol is a:<br>A. substance<br>B. heterogeneous mixture<br>C. homogenous mixture​
Dahasolnce [82]

Answer: i think it is A

Explanation:

hope this helps!

6 0
3 years ago
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