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natali 33 [55]
2 years ago
10

( copper is Cu) How many Copper atoms in 3CuSO 4 Need help ASAP !!!!!

Chemistry
1 answer:
nydimaria [60]2 years ago
5 0
There are the 3 copper atoms in 3CuSO4. I hope this helps!!
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In parallel circuits, ______ follow down ______ paths.
masya89 [10]

Answer:

Electrons follow multiple paths in a parallel circuit.

Explanation:

3 0
2 years ago
What is the theoretical yield of vanadium, in moles, that can be produced by the reaction of 1.0 mole of V2O5 with 4.0 mole of c
yuradex [85]

Answer:

Theoretical moles of V are 1.6 moles

Explanation:

The theoretical yield of a reaction is defined as the amount of product you would make if all of the limiting reactant was converted into product.

In the reaction:

V2O5(s) + 5Ca(i) → 2V(i) + 5CaO(s)

Based on the reaction, 1 mol of V2O5 needs 5 moles of Ca for a complete reaction. As there are just 4 moles, <em>limiting reactant is Ca.</em> As there are produced 2 moles of V per 5mol of Ca, Theoretical moles of V are:

4 moles of Ca × (2mol V / 5Ca) = <em>1.6 moles of V</em>

<em></em>

I hope it helps!

5 0
2 years ago
Trust me when I say this.
eimsori [14]

Answer:

thank you

So much this was very nice.

6 0
2 years ago
Read 2 more answers
Consider an ideal gas at 30 ∘C and 1.02 atm pressure. To get some idea how close these molecules are to each other, on the avera
Nastasia [14]

Answer: They are close to each other by 41.03 m^3

Explanation:

From Ideal gas equation, PV = nRT

Where n is negligible

R is gas constant = 8.314 J/mol.k

T = 30 + 273 = 303K

P = 1.02 * 103351.5 = 103351.5 Pascal

Then;

PV = RT

V = P/RT

V = 103351.5/(8.314*303)

V = 41.03m^3

8 0
2 years ago
Read 2 more answers
Any zero in a measurement is always significant <br><br> True <br> Or <br> False
weqwewe [10]

Answer:

False

Explanation:

A significant number is a number that is used to express the accuracy in a measurement. There are some rules that binds the identification of significant figures when reporting a scientific measurement.

  • All non-zero numbers are significant
  • Zeros in between two digits are significant.
  • Zeros to the right of the decimal are significant.
  • Leading zeros are just place holders and are not significant.
  • Trailing zero in a whole number with decimal is significant
  • Trailing zero without a decimal is not significant.

source: http://ccnmtl.columbia.edu/projects/mmt/frontiers/web/chapter_5/6665.html

We can see that not all zeros in a measurement is significant. For example, 540 has 2 significant numbers because the zero is not significant but 540.2 has 4 significant numbers.

3 0
2 years ago
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