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Alenkinab [10]
2 years ago
6

For any two integers a and b , A plus B square equals a square plus B square

Chemistry
1 answer:
mojhsa [17]2 years ago
7 0

After evaluating perfect square binomial, the expression "(a + b)² = a² + b²" is False.

<h3>What is a numerical data?</h3>

A numerical data is also referred to as a quantitative data and it can be defined as a data set that is primarily expressed in numbers only. This ultimately implies that, a numerical data refers to a data set consisting of numbers rather than words.

<h3>The types of numbers.</h3>

In Mathematics, there are six (6) common types of numbers and these include the following:

  • Natural (counting) numbers
  • Whole numbers
  • Rational numbers
  • Irrational numbers
  • Real numbers
  • Integers

<h3>What is an integer?</h3>

An integer can be defined as a whole number that may either be positive, negative, or zero.

Evaluating the given perfect square binomial, we have:

(a + b)² = (a + b)(a + b)

(a + b)² = a² + ab + ab + b²

(a + b)² = a² + 2ab + b² ≠ a² + b² (False).

Therefore, we can logically deduce that the expression "(a + b)² = a² + b²" is False.

Read more on perfect square binomial here: brainly.com/question/11291509

#SPJ1

Complete Question:

True or False: For any two integers a and b, (a + b)² = a² + b²

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Using the equation PCl S(g) PCl 3(g) +Cl 2(g) , if PCl 3 is added, what way will the equilibrium shift?
DIA [1.3K]

Explanation:

Equation of reaction:

     PCl₅     ⇆     PCl₃   +  Cl₂

Problem: what direction will the reaction shift towards if PCl₃ is added;

Solution:

According to Le Chatelier's principle "if any conditions of a system in equilibrium is changed, the system will adjust itself in order to annul the effect of the change".

If the concentration of PCl₃ is increase, the equilibrium will shift towards the left because it is used up in that direction. More of the PCl₅ will be produced in order for the system to adjust back to equilibrium.

learn more:

Equilibrium brainly.com/question/11080417

#learnwithBrainly

4 0
3 years ago
what is the molecular formula for a compound with the empirical formula: K2SO4 and a molecular mass of 696g​
LekaFEV [45]

Answer:

K8S4O16 or K8(SO4)4 depending on if the SO4 is supposed to represent sulfate or not

Explanation:

Find the molar mass of K2SO4 first:

2K + S + 4O ≈ 174 g/mol

Divide the goal molar mass of 696 by the molar mass of the empirical formula:

696 / 174 = 4

This means you need to multiply everything in the empirical formula by 4:

K2SO4 --> K8S4O16 or K8(SO4)4 depending on if the SO4 is for sulfate or not

4 0
3 years ago
Anyone want to join my skype im 13 and bored.
Sergio [31]

Answer:

No thanks.

Explanation:

Have a great day though!

4 0
3 years ago
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For a reaction in a voltaic cell, both ΔH° and ΔS° are positive. Given the following equations for standard free energy, ΔG° =ΔH
nika2105 [10]

Answer:

The standard cell potential increases with increasing temperature.

Explanation:

Equatio 1: ΔG° =ΔH° -TΔS°

Equation 2:  ΔG° = -nFE°

Isolating E° in equation 2:

E° = - ΔG° / nF (Equation 3)

Substituting equation 1 in equation 3:

E° = (- ΔH° +TΔS°)/ nf

We can rearrange the equation:

E° = (ΔS°/nF) T + (ΔH°/nF)

Now it is clear that the higher the temperature, the higher the standard cell potential.

5 0
4 years ago
How many valence electrons does tungsten have
bulgar [2K]

Answer:74

Explanation:

8 0
3 years ago
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