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KonstantinChe [14]
3 years ago
12

In the reaction

Chemistry
2 answers:
user100 [1]3 years ago
7 0

Answer:

a) KOH

Explanation:

In the given balanced reaction

                         2K + 2H2O → 2KOH + H2

In the compound KOH,

The elements are K,O, and H and in the compound, there is one mole each of K , O ,and H.

So the element ratio here is 1 : 1 : 1.

Vitek1552 [10]3 years ago
3 0

<u>Answer:</u> The compound that has element ratio of 1 : 1 : 1 is KOH

<u>Explanation:</u>

Mole ratio is defined as the ratio of number of moles of the two elements combining to form a compound.

In a chemical compound, the subscripts represents the number of moles of elements in a compound.

For the given chemical reaction:

2K+2H_2O\rightarrow 2KOH+H_2

H_2O has two elements, hydrogen and oxygen and is present in the ratio of 2 : 1

KOH has three elements, potassium, hydrogen and oxygen and is present in the ratio of 1 : 1 : 1

Hence, the compound that has element ratio of 1 : 1 : 1 is KOH

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damaskus [11]

Answer:

I think it is 860 g MG Cl2

Explanation:

your welcome

4 0
3 years ago
Milk of magnesia, a suspension of mg(oh)2 in water, reacts with stomach acid (hcl) in a neutralization reaction. mg(oh)2(s) + 2
defon
Balanced equation for the above reaction is as follows;
Mg(OH)₂ + 2HCl ---> MgCl₂ + 2H₂O
stoichiometry of Mg(OH)₂ to MgCl₂ is 1:1
mass of Mg(OH)₂ reacted - 1.82 g
number of moles of Mg(OH)₂  - 1.82 g/ 58.3 g/mol = 0.0312 mol
number of Mg(OH)₂  moles reacted - number of MgCl₂ moles formed 
number of MgCl₂ moles formed - 0.0312 mol
mass of MgCl₂ formed - 0.0312 mol x 95.2 g/mol = 2.97 g
mass of MgCl₂ formed - 2.97 g

5 0
3 years ago
A metal atom loses electrons from its outermost energy level and acquires a...... Charge. These electrons join a nonmetal atom.
sp2606 [1]

Answer : A metal atom loses electrons from its outermost energy level and acquires a Positive Charge. These electrons join a nonmetal atom. The ionic compound formed because of this transfer of electrons is electrically Neutral.

Explanation :

All the elements try to acquire octet state by gaining or losing electrons. For metals, the number of valence electrons are less and it is easier to lose these electrons.

When electrons are lost, the number of protons become more than the electrons. This creates an excess of positive charge. As a result the species becomes positively charged and is known as cation.

During formation of ionic bond, metals always form a positive ion (cation) by losing electrons. These electrons are accepted by the nonmetals and they become negatively charged. A negatively charged ion is known as anion and nonmetals always form an anion.

These are attracted to each other due to the opposite charges present on them. In an ionic compound they balance the charges on each other making the compound neutral.

From the above discussion, we can fill in the blanks as follows.

A metal atom loses electrons from its outermost energy level and acquires a Positive Charge. These electrons join a nonmetal atom. The ionic compound formed because of this transfer of electrons is electrically Neutral.



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