Answer:-On the reactant side, there are two H atoms and two O atoms; on the product side, there are two H atoms and only one oxygen atom. The equation is not balanced because the number of oxygen atoms on each side is not the same (Figure 7.3. 2). Figure 7.3.
The simplest hydrocarbon contains one carbon atom and four hydrogen atoms. The formula is CH4, and the name is methane.
Steps for Solving for a Reactant in Solution
Step 1: Determine what information is given in the problem and what information you are looking for.
Step 2: Set up unit conversions to find the information you are looking for.
Step 3: Do the calculations for the unit conversions and find the solution.
The equation is fairly simple. The number of atoms of ANY substance in a volume is: # of atoms = N * (density) * volume / (Molecular Weight). N is a constant called Avogadro's number and its equal to 6.022*1023 atoms/mole. Find the number of lone pairs on the central atom by subtracting the number of valence electrons on bonded atoms (Step 2) from the total number of valence electrons (Step 1). Divide the number of VEs not in bonds (from Step 3) by 2 to find the number of LPs.