1. The number of Nin 2(NH_(4))_(2)CrO_(4) 2. How many elements are in the compound C_(2)H_(8)O 3. Why is the following chemical equation not balanced. H_(2)+O_(2)... H_(2)O 4. What is a coefficient? 5. How many TOTAL atoms are in this compound? 6. How many Hydrogen are in 4H_(2)O

1. The number of Nin $2(NH_{4})_{2}CrO_{4}$<br /><br />Answer: The number of nitrogen atoms in $2(NH_{4})_{2}CrO_{4}$ is 8.<br /><br />Explanation: In the compound $2(NH_{4})_{2}CrO_{4}$, there are two ammonium ions $(NH_{4})_{2}$, each containing two nitrogen atoms. Therefore, the total number of nitrogen atoms in the compound is 8.<br /><br />2. How many elements are in the compound $C_{2}H_{8}O$<br /><br />Answer: There are 3 elements in the compound $C_{2}H_{8}O$.<br /><br />Explanation: The compound $C_{2}H_{8}O$ contains three different elements: carbon (C), hydrogen (H), and oxygen (O).<br /><br />3. Why is the following chemical equation not balanced. $H_{2}+O_{2}\cdots H_{2}O$<br /><br />Answer: The chemical equation $H_{2}+O_{2}\cdots H_{2}O$ is not balanced because the number of atoms of each element is not the same on both sides of the equation.<br /><br />Explanation: In the equation $H_{2}+O_{2}\cdots H_{2}O$, there are 2 hydrogen atoms on the left side and 2 hydrogen atoms on the right side. However, there are 2 oxygen atoms on the left side and only 1 oxygen atom on the right side. To balance the equation, we need to have the same number of atoms of each element on both sides.<br /><br />4. What is a coefficient?<br /><br />Answer: A coefficient is a number placed in front of a chemical formula to indicate the number of molecules or atoms of that substance.<br /><br />Explanation: In a chemical equation, the coefficient is a number that appears in front of a chemical formula. It represents the number of molecules or atoms of that substance involved in the reaction. For example, in the equation $2H_{2}+O_{2}\rightarrow 2H_{2}O$, the coefficient 2 in front of $H_{2}$ indicates that there are two molecules of hydrogen involved in the reaction.<br /><br />5. How many TOTAL atoms are in this compound?<br /><br />Answer: The question does not specify which compound is being referred to.<br /><br />Explanation: Without knowing the specific compound being asked about, it is not possible to determine the total number of atoms in that compound.<br /><br />6. How many Hydrogen are in $4H_{2}O$<br /><br />Answer: There are 8 hydrogen atoms in $4H_{2}O$.<br /><br />Explanation: In the compound $H_{2}O$, there are 2 hydrogen atoms. Therefore, in $4H_{2}O$, there are 4 molecules of $H_{2}O$, which means there are a total of 8 hydrogen atoms.