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3 years ago

Nuclear fusion differs from nuclear fission because nuclear fusion reactions- True or False

Chemistry

1 answer:

White raven [17]3 years ago

8 0

I think the answer would be True

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Thallium consists of 29.5%TI-203 and 70.5%TI-205. What is the relative atomic mass of thallium

Galina-37 [17]

To determine the relative atomic mass of thallium, we multiply the molar mass of the isotopes to their corresponding relative abundance. The molecular percentages should sum up to 1. In this case, we multiply 203 by 0.295 and 205 by 0.705 and add the answers of the two. The final atomic mass is 204.41 g/mol.

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3 years ago

In Mitosis, do new cells have different DNA or the same DNA?

Otrada [13]

Answer: With few exceptions, the mitotic process ensures that this is the case. Therefore, mitosis ensures that each successive cellular generation has the same genetic composition as the previous generation, as well as an identical chromosome set.

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3 years ago

What is Kb for CH3NH2(aq) + H2O(1) CH3NH3(aq) + OH (aq)?

statuscvo [17]

Answer:

Kb for CH₃NH₂ (methylamine) is 4.4 × 10⁻⁴

Hope that helps.

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3 years ago

What is the formula of the compounds in B<br><br> pls help

grandymaker [24]

Answer:

PCl3

Explanation:

The molecular formular of a compound shows the exact number of atoms of elements present in the compound. In this illustration, there is one atom of P and 3 atoms of Cl.

The formular is given as; PCl3

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2 years ago

Read 2 more answers

A chemist adds of a calcium sulfate solution to a reaction flask. Calculate the mass in grams of calcium sulfate the chemist has

Elanso [62]

The given question is incomplete. The complete question is:

A chemist adds 0.85 L of a 0.0050M calcium sulfate to a reaction flask. Calculate the mass in grams of calcium sulfate the chemist has added to the flask. Round your answer to significant digits.

Answer: The mass in grams of calcium sulfate the chemist has added to the flask is 0.58 g

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

$Molarity=\frac{n}{V_s}$

where,

n = moles of solute

$V_s$ = volume of solution in L

moles of $CaSO_4$ = $\frac{\text {given mass}}{\text {Molar mass}}=\frac{xg}{136g/mol}$

Now put all the given values in the formula of molarity, we get

$0.0050=\frac{x}{136\times 0.85}$

$x=0.58 g$

Therefore, the mass in grams of calcium sulfate the chemist has added to the flask is 0.58 g

7 0

2 years ago