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Slav-nsk [51]
3 years ago
7

What charge does copper have?

Chemistry
1 answer:
ratelena [41]3 years ago
8 0

Answer: 1+charge

Explanation: hoped this helped:)

You might be interested in
Which bond is formed due to a high electronegativity difference?
ira [324]
Answer:
Ionic bond

Explanation:
When the electronegativity between the two atoms is very large (usually greater than 2.1), this can lead to total transfer of electron from the higher electronegative  atom to the lower one.
The total transfer of electrons leads to the formation of ionic bond.

8 0
3 years ago
How many molecules does 88 grams CO2 contain? A) 1.2 X 1024 B) 1.8 X 1024 C) 3.0 X 1023 D) 6.0 X 1023
mylen [45]

Hey there!:

Molar mass CO2 = 44.01 g/mol

44.01 g CO2 ------------------- 6.02*10²² molecules CO2

88 g CO2 ------------------------ y

y = 88 * ( 6.02*10²² ) / 44.01

y = 5.29*10²⁵ / 44.01

y = 1.2 * 10²⁴ molecules of CO2

Answer A


Hope that helps!

7 0
3 years ago
A pressure of 745 mm hg equals select one:
Flura [38]
As we know that,

                                        1 mm Hg  =  1 torr
So,
                                    745 mm Hg  =  X

                         X  =  (745 mm Hg × 1 torr) ÷ 1 mm Hg

                         X  =  745 torr

Also,
                                    1 mm Hg  =  133.325 Pa
So,
                                    745 mm Hg  =  X

                         X  =  (745 mm Hg × 133.325 Pa) ÷ 1 mm Hg

                         X  =  99327 Pa

Result:
          Option-A (745 torr) is the correct answer.
3 0
4 years ago
How many molecules of carbon dioxide are present in 4.81042 mol of that substance?
Korvikt [17]

1 mol is equal to 6.02×10∧23 molecules.

first put in the calculator 4.81042 × 6.02 then hit EXP or 2nd then EE. (Depends on the type of calculator). then put in 23 and press equal.

The calculator will says 2.89587284×10∧24.

So the answer will be 2.90×10∧24.

I mot sure if the 2.90 is correct but it is close to the answer. it really depends how you want to round it. As long as the decimals are close the answer doesn't matter. Hope this helps. Please mark as Brainliest.

4 0
4 years ago
During laparoscopic surgery , carbon dioxide gas is used to expand the abdomen to help create a larger working space. If 4.80 L
Studentka2010 [4]

Answer:

5.37 L

Explanation:

To solve this problem we need to use the PV=nRT equation.

First we <u>calculate the amount of CO₂</u>, using the initial given conditions for P, V and T:

  • P = 785 mmHg ⇒ 785/760 = 1.03 atm
  • V = 4.80 L
  • T = 18 °C ⇒ 18 + 273.16 = 291.16 K

1.03 atm * 4.80 L = n * 0.082 atm·L·mol⁻¹·K⁻¹ * 291.16 K

We <u>solve for n</u>:

  • n = 0.207 mol

Then we use that value of n for another PV=nRT equation, where T=37 °C (310.16K) and P = 745 mmHg (0.98 atm).

  • 0.98 atm * V = 0.207 mol * 0.082 atm·L·mol⁻¹·K⁻¹ * 310.16 K

And we <u>solve for V</u>:

  • V = 5.37 L
7 0
3 years ago
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