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N76 [4]
2 years ago
14

What is the valency of aluminium and nitrate in Al (NO3)3​

Chemistry
1 answer:
VikaD [51]2 years ago
6 0

Answer:

Aluminum loses three valence shell electrons to become the aluminum ion Al+3. Nitrate is a polyatomic ion with the formula NO3 -1.

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plz help me asap and find the surface area here are the numbers 8 10 10 5 5 10 10. here is the other one 10 10 12 8 12 10 10 8
statuscvo [17]
I'm pretty sure if it was a cube, this would be impossible to find since each side of a cube is a square and their all equal. I use a calculator called mathsoup and symbolab. Maybe those can help
4 0
2 years ago
Read 2 more answers
A cathode ray tube is made of glass with a small amount of some kind of gas in it. It has metal electrodes at each end to pick u
Butoxors [25]

Answer:

One of the main uses of the cathode ray tube is in the Cathode  ray oscilloscope

Explanation:

Cathode rays are produced when a gas in an evacuated glass at very low pressure and high pressure breaks up into positive and negative ions. the negative ions move towards the anode(positive electrode) while the positive ions move towards the cathode(negative electrode), and there they knock off electrons (which are known as cathode rays) from the metal plate of the cathode.

Cathode ray tubes are mainly used in oscilloscopes, television picture tubes and in computer screens.

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5 0
3 years ago
What are the products in a chemical reaction?
zlopas [31]
Products are the species formed from chemical reactions. During a chemical reaction reactants are transformed into products after passing through a high energy transition state. This process results in the consumption of the reactants.
7 0
2 years ago
What type of bond does carbon and sulphur form when they react. explain​
Vedmedyk [2.9K]

Answer:

covalent bonding becaus of there both non metals

5 0
2 years ago
How many moles make up 5.7491x1025 molecules of Dinitrogen pentoxide (N2O5)?
pav-90 [236]

Answer:

<h2>95.5 moles</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{5.7491 \times  {10}^{25} }{6.02 \times  {10}^{23} }  \\

We have the final answer as

<h3>95.5 moles to 3 sig. figures</h3>

Hope this helps you

6 0
3 years ago
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