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tester [92]
3 years ago
15

Metallic properties tend to increase in which direction on the periodic table

Chemistry
1 answer:
tresset_1 [31]3 years ago
3 0
Metallic properties head to the left.
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The Young's modulus values for iron and lead are 210 GPa and 16 GPa, respectively. Based on the information, which statement is
Mrac [35]

Lead is more ductile than iron. The correct option is A. Lead is more ductile than iron

<h3>Young's modulus </h3>

From the question, we are to determine the statement which is true

First, we will define the term <em>Young's modulus </em>

<em>Young's modulus</em> is a measure of the stiffness of an elastic material. It is also given as the ratio of <u>stress </u>to <u>strain</u>. That is,

Young's\ modulus = \frac{Tensile\ stress}{Tensile\ strain}

The greater the modulus, the stiffer the material.

Materials with low Young's modulus tend to be <u>ductile </u>and materials with high Young's modulus tend to be <u>brittle</u>

Since the Young's modulus value for iron is higher than that of lead, then iron is <em>stiffer </em>than lead.

Thus, lead is more ductile than iron. The correct option is A. Lead is more ductile than iron

Learn more on Young's modulus here: brainly.com/question/26660981

3 0
2 years ago
The pH scale for acidity is defined by pH=−log10[H⁺] where [H⁺]is the concentration of hydrogen ions measured in moles per liter
masha68 [24]

Answer:

5.62 * 10^-13 moles per liter

Explanation:

The pH of a solution is the negative logarithm to base 10 of the concentration of hydrogen ions. What we simply do here is to input the information in the question into the equation:

pH=−log10[H⁺]

Here we know the pH but we do not know the concentration of the hydrogen ions.

12.25 = -log [H+]

log[H+] = -12.25

[H+] = 10^-12.25

[H+] = 5.62 * 10^-13 moles per liter

7 0
3 years ago
The following reaction shows sodium hydroxide reacting with sulfuric acid.
elena-14-01-66 [18.8K]

The amount of  Na₂SO₄ would be 15.09 grams

<h3>Stoichiometric calculation</h3>

From the equation of the reaction:

4NaOH + 2H₂SO₄ --> 2Na₂SO₄ + 4H₂O

Mole ratio of NaOH and Na₂SO₄ = 2:1

Mole of 8.50 grams of NaOH = 8.50/40

                                                 = 0.21 mole

Equivalent mole of Na₂SO₄ = 0.21/2

                                              = 0.11 mole

Mass of 0.11 mole Na₂SO₄ = 0.11 x 142.04

                                             = 15.09 grams

More on stoichiometric reactions can be found here: brainly.com/question/8062886

4 0
3 years ago
Which of the following contains only one
kipiarov [429]

Answer:

A. elements

<em>I</em><em> hope</em><em> it's</em><em> helps</em><em> you</em>

7 0
3 years ago
Read 2 more answers
What geologic features might form in convergent boundaries<br>Pls help
lisov135 [29]
1) deep trenches
2) active volcanoes
3) arcs of islands along the tectonic boundaries
4) in some cases, mountain ranges
5 0
3 years ago
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