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Angelina_Jolie [31]
3 years ago
9

(25points) Explain in your own words the difference between atomic mass and atomic number. Where can you find this information o

n the periodic table?
Chemistry
2 answers:
Fiesta28 [93]3 years ago
8 0

Answer:

No time for it Ill help soon qw q

Explanation: And yes you know that 2332423 .

Eduardwww [97]3 years ago
6 0

Answer:

Atomic mass= The number of protons and neutrons in the atom

Atomic Number= Just the number of protons

Explanation:

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4 Lef's say you find a fossil in a layer of shale. How might you determine the age of the shale?
VLD [36.1K]

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why u blocked i fought we were mates

Explanation:

8 0
3 years ago
The period 4 alkaline-earth metal has the name_______ . An isotope of this element having 20 neutrons has amass numberof _______
Cerrena [4.2K]

Answer:

The period 4 alkaline-earth metal has the name Calcium. An isotope of this element having 20 neutrons has a mass number of 40.

Explanation:

Looking at the periodic table 4th row for the alkaline-earth metal, we can find Calcium which has an atomic number of 20 (or protons number, or z). The mass number is given by the sum of protons and neutrons. If the number of protons in this case is 20 and the number of neutrons is also 20, the mass number A = 40.

6 0
3 years ago
Atoms of Ca and F would be expected to react in a ratio of
Gemiola [76]

Answer:

A 1:1

Explanation:

i thinks it's right

5 0
3 years ago
you have been given 250.0 mL of an aqueous solution containing 18.7grams of AgNO3. What is the molarity of solution?
Reil [10]

Hey there!:

Molar mass AgNO3 = 169.87 g/mol

Number of moles:

moles of solution = mass of solute / molar mass

moles of solution = 18.7 / 169.87

moles of solution = 0.110084 moles of AgNO3

Volume in liters:

250.0 mL / 1000 => 0.25 L

Therefore:

Molarity = moles of solution / Volume of solution ( L )

Molarity = 0.110084 / 0.25

=> 0.440 M

Hope that helps!

8 0
3 years ago
List 10 ways to reduce air pollution at home
Natasha_Volkova [10]
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I can't think of anything else.
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3 years ago
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