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JulijaS [17]
3 years ago
15

How many lbs are in 5 kilograms ?

Chemistry
2 answers:
lisov135 [29]3 years ago
4 0

Answer:

11.023 pounds

Explanation:

Lelu [443]3 years ago
4 0
Roughly 11 pounds is equal to 5 kilograms
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Number of moles in 7.8 x 10(at top of 10 like exponent 23) molecules
Anarel [89]
First you need to know Avogadro's number which is 6.02 times 10^23 molecules in 1 mole of a substance. So now just divide your number by Avagadro's number to get the number of moles.
6 0
3 years ago
A piece of silver (Ag) metal weighing 194.3 g is placed in a graduated cylinder containing 242.0 mL of water. The volume of wate
mariarad [96]

Answer: The density of silver metal will be 10.50g/ml[\tex]Explanation:Density is defined as the mass contained per unit volume.[tex]Density=\frac{mass}{Volume}

Given : Mass of silver = 194.3 grams

Volume of silver= volume of water displaced= 260.5-242.0=18.5mltex]Putting in the values we get:[tex]Density=\frac{194.3g}{18.5ml}=10.50g/ml/tex]Thus density of silver metal will be [tex]10.50g/ml

6 0
3 years ago
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3
Wewaii [24]

Answer: 0.0450 moles of CaCl_2

Explanation:

According to avogadro's law, 1 mole of every substance weighs equal to its molecular mass and contains avogadro's number 6.023\times 10^{23} of particles.

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}

\text{Number of moles of} CaCl_2=\frac{5.00g}{110.98g/mol}=0.0450moles

Thus there are 0.0450 moles of CaCl_2

6 0
4 years ago
Which of the following is not a rock? a. granite b. shale c. marble d. diamond
Savatey [412]
Diamond is not a rock it is a mineral. 
5 0
3 years ago
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The ____ allows you to compare the elements and understand their properties​
sweet-ann [11.9K]

Answer:

Periodic Table

hope this helps

have a good day :)

Explanation:

5 0
3 years ago
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