A chemical formula will list all elements present by their abbreviations used on the Periodic Table. A subscript listing how many atoms of each element are present in the chemical will follow each element abbreviation.
A balanced chemical equation has the same number of atoms of each element on both sides of the equation, ensuring that mass is conserved. An unbalanced chemical equation does not have the same number of atoms of each element on both sides, violating the law of conservation of mass. Balancing involves adjusting coefficients in front of chemical formulas to achieve balance.
In chemistry a molecular formula is used to illustrate the elemental composition and atomic quantities of a given molecular substance. A molecular formula is in the format of an elements symbol followed by a subscript of the # of atoms of each. For example water (chemically also known as dihydrogen monoxide) is H20 with the H and 2 symbolizing 2 atoms of hydrogen and a single oxygen.
I'll start with a simple example:
H2O --> H2 + O2
This is not balanced, but to balance you use coefficients along with the subscripts of the reaction to make the elements on both side of the arrow correspond with one another.
Start with writing down the amount of each element with just their subscripts.
H2O:
H=2
O=1
H2 + O2:
H=2
O=2
Now notice how you need one more Oxygen (O) on the first part of the reaction, so then you would use a coefficient to double the H2O, which turns out like this:
2H2O --> H2 + O2
2H2O:
H=4
O=2
H2 + O2:
H=2
O=2
Now notice that the oxygen is fixed, but the hydrogen (H) doubled as well, so you need to double the hydrogen on the other side:
2H2O --> 2H2 + O2
2H2O:
H=4
O=2
2H2 + O2:
H=4
O=2
This equation is now completely balanced.
"Production of glucose in plants"
This is a synthesis reaction, and when it's balanced, it looks like this: 4Al + 3O2 --> 2Al2O3
The chemical equation looks like this:4HNO3(l) --> 4NO2(g) + 2H2O(l) + O2(g)
ya it changes how it looks or feels
Chemical Changes the substance and physical really dont change it as much examples of chemical: burning wood, physical: painting it Physical is basically changing color, looks,
A balanced equation in science is a chemical equation where the number of atoms of each element is the same on both sides of the equation. This ensures that mass is conserved during a chemical reaction. Balancing an equation involves adjusting the coefficients in front of the chemical formulas to achieve this balance.
The chemical equation for the reaction between C2H6O and O2 is not balanced. It should be balanced to ensure the conservation of mass and atoms on both sides of the equation.
The balanced equation for the reaction between K2SO4 and AlCl3 to form KCl and Al2(SO4)3 is: 2K2SO4 + 6AlCl3 -> 3KCl + 2Al2(SO4)3.
"Production of glucose in plants"
This is a synthesis reaction, and when it's balanced, it looks like this: 4Al + 3O2 --> 2Al2O3
The chemical equation for when lithium reacts with fluorine is: 2 Li + F2 -> 2 LiF
The balanced equation for calcium carbonate (CaCO3) reacting with phosphoric acid (H3PO4) is: 3CaCO3 + 2H3PO4 -> Ca3(PO4)2 + 3CO2 + 3H2O
You can add sodium hydroxide (NaOH) to sulfuric acid to neutralize it. The balanced chemical equation for this reaction is: H2SO4 + 2NaOH -> Na2SO4 + 2H2O.
The chemical reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH) produces water (H2O) and sodium chloride (NaCl), which is a salt. The balanced chemical equation for this reaction is: HCl + NaOH → NaCl + H2O.
aluminum bromide = AlBr3 the reason why there is 3 Br atoms is that aluminum is in group 3 chlorine gas exists as a diatomic Cl2 molecule AlBr3 + Cl2 <------> AlCl3 + Br2 this type of reaction is a subsitiution reaction where chlorine and bromine ate both group 7 gas's and are interchangable to balance this you'll notice that we lose 2 Br atoms, but have 3 at the start. This can look a bit confusing, so we need a number that both 3 and 2 go into to balance the Br atoms These both go into 6 so if we use 2AlBr3 that gives us 6 Br on the left hand side and if we generate 3 Br2 on the right hand side we have the bromines balanced now we've balanced the bromines, you noticed that we unbalanced the Al, so, to balance them again we need to form 2 AlCl3 on the right hand side and the Al is balanced finally, by balancing the Al we unbalanced the Cl there are 6 Cl on the right hand side but only 2 on the left hand side, so if we use 3 Cl2 on the left hand side then we have balanced the Cl's your complete equation looks like this; 2AlBr3 + 3Cl2 <------> 2AlCl3 + 3Br2
In this case, this is an acid-base reaction between nitric acid and ammonia. Nitric Acid is a strong acid, therefore, its hydrogen atom dissociates completely. The equation looks like this:HNO3(aq) + NH3(aq) => NH4NO3(aq)
The chemical equation looks like this:4HNO3(l) --> 4NO2(g) + 2H2O(l) + O2(g)