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Sergeeva-Olga [200]
3 years ago
6

Which element is most plentiful in Earth's crust?

Chemistry
1 answer:
dem82 [27]3 years ago
5 0

Answer:

Oxygen is the most contain in earth but you asked in a,b,c and d. So I'll choice A. aluminium.

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2. How many atoms are in 5.6 moles of Na? Answer:___3.2 E 24 atoms of Na​
jeyben [28]

Answer:

5.6\frac{6.02*10^{23} }{1} = 3.4 X 10^{24}

Explanation:

the correct answer to it is 3.4 instead of 3.2. I got 3.4 from rounding it from 3.37.

8 0
4 years ago
In the chemical reaction below, what Is the product? C+o2 -> Co2
vlada-n [284]

Answer:

CO₂

Explanation:

The product of the reaction is CO₂.

In a chemical reaction, the product is the substance usually found on the right hand side of the expression.

  Reaction equation is given as;

          C  +  O₂  →  CO₂  

In this reaction, C and O₂ are the reactants

  CO₂ is the product of the reaction.

  • This reaction is called a combination reaction in which two species combines to give a product.
6 0
3 years ago
The mass of a quantity of Cl gas (70,906 g/mol) that occupies<br> 50.0L at 27.0°C and 721 mm Hg is:
inessss [21]

We need no of moles

Apply ideal gas equation

  • PV=nRT
  • n=PV/RT
  • n=721(50)/8.314(300)
  • n=14.4mol

So

mass

  • 70.906(14.4)
  • 1021g
4 0
2 years ago
A piece of glass with a mass of 32.50 g specific heat of 0.840 J/g*°C and an initial temperature of 75 °C was dropped into a cal
elixir [45]
Hey there,

119.84 degrees c is your answer.

Hope I Helped!

Have a great day!


8 0
3 years ago
Read 2 more answers
If 63.5 mol of an ideal gas is at 9.11 atm at 42.80 °C, what is the volume of the gas?
Anastaziya [24]

The volume of the gas is 180.26 L, if there are 63.5 mol of an ideal gas at 9.11 atm at 42.80 °C.

Applying the ideal gas law PV= nRT

After rearranging the aforementioned expression, the volume might then be found as: V= n R T/ P.

Consequently, V= 63.5 mol, 0.0821, 315 K, and 9.11 atm equal 180.26 L.

<h3>How is the ideal gas equation defined?</h3>

The ideal gas equation is PV = nRT. In this equation, P denotes the ideal gas's pressure, V its volume, n its total amount, expressed in moles, and R its resistance for the universal gas constant, and T for temperature.

To know more about Ideal gas, visit-

brainly.com/question/8711877

#SPJ13

3 0
2 years ago
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