My question is why is this just not K + Cl2 -->KCl2 ? How do we know to put a 2 in front of the K. I thought it was balanced that way already since we have one K and 1 Cl molecule on both sides. Mainly, how do we know a 2 goes in front of the K on the left if we are given a word problem that doesn't specify but gives us potassium and chloride. It's number one on the worksheet

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My question is why is this just not K + Cl2 -->KCl2 ? How do we know to put a 2 in front of the K. I thought it was balanced that way already since we have one K and 1 Cl molecule on both sides. Mainly, how do we know a 2 goes in front of the K on the left if we are given a word problem that doesn't specify but gives us potassium and chloride. It's number one on the worksheet

'chloride as the only product. After the reaction, 6.867 g of chlorine remains unreacted.
Chemistry I Science
Supplemental Problems from Chapter 2
1. A1.446 g sample of potassium reacts with 8.178 g of chlorine to produce potassium
CCC – Dr. Feudale
chloride as the only product. After the reaction, 6.867 g of chlorine remains unreacted.
What mass of potassium chloride was formed?
.178
5.65
Mass of KCl produced = 2.757 g
0.1768
2.
. 1 liter of nitrogen gas reacts with 3 liters of hydrogen gas to form 2 liters of an unknown
gas. Determine the formula of the gas.
N2 + 3H2
→ 2NH3
3. Fill in the missing information for the following neutral elements. Be sure to provide the
mass number along with the chemical symbol in the first column.
Number of
Electrons
Number of
Mass Number
Number of
Chemical
Neutrons
Protons
24
52
Symbol
28
24
47
107
Transcribed Image Text:'chloride as the only product. After the reaction, 6.867 g of chlorine remains unreacted. Chemistry I Science Supplemental Problems from Chapter 2 1. A1.446 g sample of potassium reacts with 8.178 g of chlorine to produce potassium CCC – Dr. Feudale chloride as the only product. After the reaction, 6.867 g of chlorine remains unreacted. What mass of potassium chloride was formed? .178 5.65 Mass of KCl produced = 2.757 g 0.1768 2. . 1 liter of nitrogen gas reacts with 3 liters of hydrogen gas to form 2 liters of an unknown gas. Determine the formula of the gas. N2 + 3H2 → 2NH3 3. Fill in the missing information for the following neutral elements. Be sure to provide the mass number along with the chemical symbol in the first column. Number of Electrons Number of Mass Number Number of Chemical Neutrons Protons 24 52 Symbol 28 24 47 107
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For the equation 2K + Cl2------>2KCI. I und...
Expert Answer
Step 1
2K + Cl2
2KCI
Two potassium atoms react with one molecule of
chlorine to form two molecules of KCl.
For balancing chemical equation potassium (K) is
multiplied with 2.
Step 2
In balance chemical equation coefficient of
reactants and products are known as
stoichiometric coefficients. Here stoichiometric
coefficient of K is 2.
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Transcribed Image Text:1:41 bartleby.com/questions-and- = bartleby Q&A Science / Chemistry / Q&A Library / For the equation 2K + Cl... For the equation 2K + Cl2------>2KCI. I und... Expert Answer Step 1 2K + Cl2 2KCI Two potassium atoms react with one molecule of chlorine to form two molecules of KCl. For balancing chemical equation potassium (K) is multiplied with 2. Step 2 In balance chemical equation coefficient of reactants and products are known as stoichiometric coefficients. Here stoichiometric coefficient of K is 2. Was this solution helpful?
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