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irina [24]
2 years ago
7

Does a triangle with these side length exist 15 12 9

SAT
1 answer:
geniusboy [140]2 years ago
5 0

Answer:

Yes, it is a right triangle

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How many grams of lead product would theoretically be produced between 17. 0 g potassium iodide, ki, and 25. 0 g of lead (ii) ni
Fantom [35]

The number of grams of lead product that would theoretically be produced from the given reaction is; <u><em>Mass of lead product = 23.6 g</em></u>

Potassium iodide reacting with Lead(II) Nitrate would yield the balanced equation;

2KI + Pb(NO₃)₂ = 2KNO₃ + PbI₂

2moles : 1 mole = 2 moles : 1 mole

From online tables;

Molar mass of KI = 166 g/mol

Molar mass of Pb(NO₃)₂ = 331.2 g/mol

We are given;

Mass of KI = 17 g

Mass of Pb(NO₃)₂ = 25 g

Thus;

Number of moles of PbI₂ yielded in order to find the limiting reactant will be;

no of moles of PbI₂ from KI = (17g/166 g/mol) × (1 mole of PbI₂/2 mol of KI)

no of moles of PbI₂ from KI = 0.0512 mols

Similarly;

no of moles of PbI₂ from Pb(NO₃)₂ = (25g/331.2 g/mol) × (1 mole of PbI₂/1 mol of Pb(NO₃)₂)

no of moles of PbI₂ from Pb(NO₃)₂ = 0.0755 moles

We can see that KI produced the least amount of moles. Thus;

Mass = 0.0512 * molar mass of  PbI₂

From tables, molar mass of  PbI₂ = 461 g/mol

Thus;

Mass of lead product = 461 * 0.0512

Mass of lead product = 23.6 g

Read more about theoretical yield at; brainly.com/question/21091465

5 0
2 years ago
The attraction between water molecules and a na+ ion or a cl- ion occurs because water molecules are —
Shkiper50 [21]

Water molecules are polar (positive charge zones and negative charge zones) this makes the attraction of a na+ ion or a cl- ion to occur.

<h3>How are the water molecules composed?</h3>

This class of molecules that have a distribution of charges are called polar and, consequently, form bonds called hydrogen bonds with other molecules.

These molecules have a permanent dipole moment, that is, they have a structure called dipolar (two poles), this arrangement gives water great power to dissolve substances within it.

Therefore, we can conclude that water molecules are polar (positive charge zones and negative charge zones) this makes the attraction of a na+ ion or a cl- ion to occur.

Learn more about water molecules here: brainly.com/question/12730171

7 0
3 years ago
Wages earned over the course of a year are a worker’s.
disa [49]

Answer:

Salary

Explanation:

Wages earned over the course of a year are a worker's salary. Companies hire employees' labor in a mutually beneficial contract, where employees receive corporate salaries. The other alternatives represent benefits and the wage calculation formula, per hour.

6 0
2 years ago
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Mawi says that failure may be ok because
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I don't quiet understand the question your asking
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3 years ago
Exchanging goods or services of equal value is called. Replaces the need for bartering. Money allows us to exchange for goods an
lilavasa [31]

Answer:

whats the question?

Explanation:

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3 years ago
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