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Serggg [28]
3 years ago
11

What is the electron of (Kr)5s24d10

Chemistry
1 answer:
Elden [556K]3 years ago
5 0

Answer: [Kr] 5s24d10 is the element Cadmium, Cd. It has 48 electrons.

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What is a cause of cemical weathering? <br><br> A. sunlight<br> B. wind<br> C. gravity<br> D. acids
siniylev [52]
D. Acids I hope this helped ur welcome
4 0
3 years ago
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Is adding hot cocoa to hot water a chemical or physical change?
saul85 [17]
Adding hot cocoa to hot water would be a chemical change
6 0
4 years ago
Why is stoichiometry is used in cooking?
labwork [276]

Answer:

Explanation:

stoichiometry is used in cooking because it helps you determine the amount or proportion of compounds you will need in a chemical reaction. Stoichiometry is present in daily life, even in the cooking recipes we make at home. The reactions depend on the compounds involved and how much of each compound is needed to determine the product that will result.

7 0
4 years ago
What is the molarity of 50.84 g of Na2CO3 dissolved in 0.400 L solution?
borishaifa [10]

Answer:

1.20 M

Explanation:

Convert grams of Na₂CO₃ to moles.  (50.84 g)/(105.99 g/mol) = 0.4797 mol

Molarity is (moles of solute)/(liters of solvent) = (0.4797 mol)/(0.400 L) = 1.20 M

4 0
3 years ago
Please Easy Chem Question 15 points...
HACTEHA [7]

Answer:

Mass of NaOH required= 60 g

Explanation:

Given data:

Mass of NaHCO₃ = 126 g

Mass of NaOH required = ?

Solution:

Chemical equation:

NaOH + CO₂   →   NaHCO₃

Number of moles of NaHCO₃:

Number of moles = mass/ molar mass

Number of moles = 126 g/ 84 g/mol

Number of moles = 1.5 mol

Now we will compare the moles of NaHCO₃ and NaOH.

                   NaHCO₃       :        NaOH

                        1               :            1

                      1.5              :            1.5

Mass of sodium hydroxide:

Mass = number of moles × molar mass

Mass = 1.5 mol × 40 g/mol

Mass = 60 g

4 0
3 years ago
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