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First of all, it is "HCl" not "HCI" -- in other words the letters H-C-L, and not H-C-I. HCl is hydrochloric acid, and is made of hydrogen atom (H) and a chlorine atom (Cl). There is no such thing as HCI.
2HCl means 2 of HCl. it is the coefficient. there is no such thing as prescript, only subscript. so if it were HCl2, then the Cl there would be two in count, with 1 H.
What else can I help you with?
What is the balanced equation for caCO3 2HCI?
CaCO3 + 2HCl --> CaCl2 + H2O + CO2
What is the coefficient of H(2)O?
If there is no number, then a "1" is implied.
In the formula 2HgO the coefficient is?
The coefficient in front of the compound HgO in the formula 2HgO is 2. This means there are 2 moles of HgO for every 2 moles of the whole compound.
What is keq for the reaction 2HCI(g) H2(g) plus Cl2(g)?
For 2HCl(g) ==> H2(g) + Cl2(g) the Keq = [H2][Cl2]/[HCl]^2
What is the coefficient in front of iron Fe plus O2 equals Fe2O3?
In the balanced chemical equation 4Fe + 3O2 -> 2Fe2O3, the coefficient in front of iron (Fe) is 4.
Does 2HCI plus Mg equal 2Mg atoms?
Does 2HCI plus Mg equal 2Mg atoms
What is the coefficient of radical 2?
Radical 2 is a number, it does not have a coefficient.
What is an example of coefficient?
2X 2 is the coefficient
What is the coefficient in the number sentence 8x equals 16?
8 is the coefficient. A coefficient is the number in front of a variable.
What is a coefficient in math?
A coefficient is a number before a variable. For example, in 2x, the 2 would be the coefficient
Is 2p a coefficient?
In the term 2p, 2 is the coefficient.
What is the coefficient in this algebraic expression 7d plus 2?
7d + 2 7 is the only coefficient
What is the coefficient for Cl2?
The coefficient for Cl₂ is 1. If not written explicitly in a chemical equation, a coefficient of 1 is understood to be present.
Which of the following reactions is balanced ( Apex )?
CaCl2 + H2CO3 -> CaCO3 + 2HCI
What is numerical coefficient of -2?
It is -2.
What is the coefficiant 5a 2?
The coefficient in the term 5a^2 is 5. In algebraic terms, the coefficient is the numerical factor that is multiplied by the variable term. In this case, the variable term is a^2, and the coefficient is 5.
What is the coefficient in this algebraic expression 7d 2?
7 is the coefficient of the variable d
