4 years ago

Identify the Lewis acid in this balanced equation:

Chemistry

2 answers:

alexgriva [62]4 years ago

8 0

Answer:

B: BH3

Explanation:

Dmitry_Shevchenko [17]4 years ago

7 0

Answer:

BH3

Explanation:

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The symbol, Mg(s), shows magnesium in its standard state. True or False?

puteri [66]

Answer:

True?

Explanation:

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3 years ago

What is the empirical formula of the compound that is 25.3% magnesium and 74.7% chlorine

Margarita [4]

Answer: $MgCl_2$

Explanation:

25.3% Mg

74.7% Cl

First step: change % to g

25.3g Mg

74.7g Cl

Second step: calculate g/mol of each compound. You can do this by using the atomic mass.

$25.3gMg(\frac{1mol}{24.30g})=1.04mol$

$74.7gCl(\frac{1mol}{35.45g} )=2.11mol$

Third step: determine the lowest number and divide everything by it. Of the result, extract whole number only.

$Mg=\frac{1.04}{1.04} =1$

$Cl=\frac{2.11}{1.04}=2$

Fourth step: Write each compound with their respective number below.

This empirical formula should be: $MgCl_2$

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3 years ago

What family of elements in the periodic table contains the most reactive metals?

jeka57 [31]

Alkali metals.

Elements found in group 1 of the periodic table.

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3 years ago

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What type of substance is steel

MrRa [10]

Answer: steel is an alloy of carbon and iron

Explanation:

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The number of atoms in a mole of any pure substance is called

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The number of atoms in a mole of any pure substance is called Avogadro's number.

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