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3 years ago

13

Substance A and B are the same mass and at the same initial temperature. When the same amount of heat is added to each, the fina

l temperature of A is 75 degrees Celsius and B is 35 degrees Celsius. What does this tell you about the specific heat of A and B?

1 answer:

Bingel [31]3 years ago

7 0

That both of them are warm....at a certain temputurature causing one to fell,cozy

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Which two subatomic particles are located in the nucleus of an atom?

natta225 [31]

Two subatomic particles that are located in the nucleus of an atom are Protons and Neutrons.

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2 years ago

How many atoms are in 578g Na

borishaifa [10]

1.51 x 10²⁵atoms

Explanation:

Given parameters:

Mass of Na = 578g

Unknown:

Number of atoms = ?

Solution:

To find the number of atoms, we must first find the number of moles the given mass contains.

Number of moles = $\frac{mass}{molar mass}$

molar mass of Na = 23g

Number of moles = $\frac{578}{23}$ = 25.13moles

1 mole of a substance = 6.02 x 10²³atoms

25.13 mole of Na = 25.13 x 6.02 x 10²³atoms

This gives 1.51 x 10²⁵atoms of Na

Learn more:

Avogadro's constant brainly.com/question/2746374

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3 years ago

What mass of solute is needed to prepare each of the following solutions?

noname [10]

Answer:

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b. 0.2362 g

c. 31.5273 g

Please see the answers in the picture attached below.

Explanation:

Please see the step-by-step solution in the picture attached below.

Hope this answer can help you. Have a nice day!

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3 years ago

How do calculate the mass number of an atom

Verizon [17]

You add the protons and the nuetrons together i think

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3 years ago

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Katarina [22]

Answer:

I think it is A _ B_C_D

Explanation:

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3 years ago