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Lady bird [3.3K]
3 years ago
11

Is the chemical equation 4AI + 2O₂ → 2AI2O₃ balanced?

Chemistry
1 answer:
o-na [289]3 years ago
6 0

no this chemical equation is not balanced

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How to solve 5gNaCl= MolE NaCl
valentinak56 [21]

0.086mole

Explanation:

The problem is very simple. It involves conversion from mass to number of moles of NaCl

What is mole?

 A mole is a unit of measuring chemical substances. It is the amount that contains the avogadro's number of particles.

How is it related and can be converted from mass;

 

Number of moles of a substance = \frac{mass}{molar mass}

Since we know the mass, we can find the molar mass and put into this equation;

Molar mass of NaCl = 23 + 35.5 = 58.5g/mol

Number of moles of NaCl = \frac{5}{58.5}  = 0.086mole

learn more:

Number of moles brainly.com/question/1841136

#learnwithBrainly

4 0
3 years ago
Which of the following best states the difference between an alcohol and an ether?
goldenfox [79]
I'd say it would be
D 
8 0
3 years ago
A substance is highly malleable and has a shiny luster. Which of the following best explains the probable position of the substa
Aleks04 [339]
The answer is D only metals are shiny and highly malleable
5 0
3 years ago
Read 2 more answers
1. How many moles of HCl are in 7.80 X 1022 molecules? Answer:___0.13 moles of HCI​
Nuetrik [128]

Answer: 7.80×10^{22}\frac{1}{6.02*10^{23} } =.13

Explanation:

8 0
3 years ago
By what quantity must the heat capacity be divided to obtain the specific heat of that material
masha68 [24]
<span>Heat capacity of an object, is the amount of heat energy or thermal energy (unit: Joule) needed to raise the temperature of the object by 1 degree celsius. Unit of heat capacity is J/°C 

Larger object will surely need larger amount of thermal energy to raise its temperature. If you compare 1 litre of water with 0.5 litre of water, the 1L water will have two times the heat capacity. 

It will be more useful to compare specific heat capacity, because then it is the amount of heat energy or thermal energy (unit: Joule) needed to raise the temperature of 1 unit mass of the object by 1 degree celsius. You can then compare between 1 unit mass of water and 1 unit mass of iron. 
Water has higher specific heat capacity than iron, meaning that you need more energy to heat up 1kg of water, then to heat up 1kg of iron. 

The unit will then be J/(kg °C) or J/(g °C).
</span>
6 0
3 years ago
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