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Rus_ich [418]
3 years ago
13

What is the half life of an isotope that is 75% decayed after 16 days?

Chemistry
1 answer:
inna [77]3 years ago
5 0

Answer:

half life will be 8days

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The Principle Quantum Number describes what aspect of electron orbitals?
V125BC [204]

Answer:

C

Explanation:

Because that's the spin in its orbitals.

6 0
2 years ago
How is a heterogeneous mixture different from a homogeneous mixture?
MArishka [77]
A homogeneous mixture<span> has the same uniform appearance and composition throughout. Many </span>homogeneous mixtures<span> are commonly referred to as solutions. A </span>heterogeneous mixture <span>consists of visibly </span>different<span> substances or phases. The three phases or states of matter are gas, liquid, and solid. Now this is my answer. So revise it a little. You dont want plagiarism </span>
6 0
3 years ago
PLEASE HELP ME PLEASE!!!!!!!!
SVETLANKA909090 [29]

So yield = actual/predicted*100

You need to find the theoretical yield. CONVERT INTO MOLES. this is the 1st step you do in most calculation questions.

I got 15.92%

4 0
3 years ago
Which is a pure substance??
sveta [45]
The answer is A. Table salt is a pure substance.
4 0
3 years ago
Read 2 more answers
How many grams of barium sulfate form when 35.0 ml of 0.160 m barium chloride reacts with 58.0 ml of 0.065 m sodium sulfate? do
vazorg [7]

Barium sulfate weighs 0.88 grams per gram.

Mass:

A physical body's overall composition is measured by its mass.

Inertia, or the body's resistance to acceleration in the presence of a net force, is also measured by it.

The mass of a thing also affects how strongly it attracts other bodies through gravity.

In the SI, the kilogram serves as the basic mass unit (kg).

This information

Moles of BaCl2 equal 5.6 x 103 (35 x 0.160 / 1000)

sodium sulfate moles equal 58 x 0.065, or 3.77 x 103,

Na2SO4 with BaCl2 ——————————-> 2NaCl plus BaSO4

Na2SO4 is the limiting agent here.

Therefore, the product relies on limiting reagent.

1 mol of Na2SO4 produces 1 mol of BaSO4.

0.00377 moles of BaSO4 is one mole.

moles = mass / molar mass of BaSO4.

0.00377 = mass / 233.4

BaSO4 mass is 0.88 g.

So, 0.88 grams of barium sulfate make up one gram.

To know more about the mass visit:

brainly.com/question/28204586

#SPJ4

3 0
2 years ago
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