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2 years ago

How many moles are in 2.00g of beryllium chloride

Chemistry

2 answers:

lisabon 2012 [21]2 years ago

6 0

Answer:

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Neporo4naja [7]2 years ago

6 0

Answer:

.025 moles

Explanation:

Be Cl2 is beryllium chloride

Be = 9.0121 gm/mole

Cl = 35.45 gm mole

Be Cl2 = 79.91 gm/mole

2 gm / 79.91 gm/mole = .025 moles

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What is the formula for Tetrachlorine pentaiodide

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Answer:

subscribe to me on you-tube for brainliest custom link since u cant do a you-tube link :/

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3 years ago

How do i find a ionic formula? <br><br>for example Ca2+ & S2-

jeka94

Example #1 write the chemical formula for Calcium Oxide

Step 1

-Find the Atomic symbol of the metal and non-metal on the periodic table

CaO

Step 2

Find the charges for Calcium and Oxygen

which are Ca 2+ and O 2-

Step 3

Balance out the charges

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Example 2 write the chemical formula for Aluminum Oxide

Step 1

-Find the Atomic symbol of the metal and non-metal on the periodic table

Step 2

Find the charges for Aluminum and Oxygen

Which are Al 3+ and O 2-

Step 3

Balance out the charges

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$Al_{2} O_{3}$

8 0

3 years ago

The molecular mass of a compound is 92 g/mol. Analysis of the compound shows that it consists of 0.608 g of N and 1.388 g of O.

Pavel [41]

The empirical and molecular formula would be $NO_2$ and $N_2O_4$ respectively.

<h3>Empirical formula</h3>

The compound contains N and O.

N O

0.608/14 = 0.0434 1.388/16 = 0.0867

Divide by the smallest.

N = 1 O = 2

Thus, the empirical formula would be $NO_2$

To get the molecular formula:

Empirical formula mass = 14 + (16x2) = 46

n = molar mass/empirical formula mass

= 92/46 = 2

Thus, the molecular formula would be $N_2O_4$

More on empirical formulas can be found here: brainly.com/question/14044066

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3 years ago

A reaction takes place between an acid and 0.5 gram of solid magnesium ribbon. Another reaction takes place between an acid and

aliina [53]

Answer:

Explanation:

The correct answer would be that <u>the powdered magnesium reacts faster because it has a greater surface area</u>.

<em>The rate of reaction is defined as the rate of disappearance of the reactants in a reaction or the rate of conversion of appearance of products during a reaction. </em>

The rate of reaction is dependent on several factors such as the concentration of the reactants, temperature of the reaction, nature of reactants, and the presence or absence of catalysts during the reaction.

As far as the nature of reactants is concerned, the surface area of reactants comes into play. <em>Reactants with higher surface areas react faster than reactants with lesser surface areas</em>. Hence, powdery reactants react faster than solid reactants because the latter has a higher surface area than the former.

The correct option is A.

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3 years ago

Compared with the rate of an inorganic reaction, the rate of an organic reaction is usually 1. faster, because the organic parti

Vlad [161]

The answer is: 4) "slower, because the organic particles are molecules."
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7 0

3 years ago

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