Chemical equations must be balanced to satisfy the law of conservation of matter, that states that matter cannot be produced or destroyed in a closed system. The law of conservation of mass governs the balancing of a chemical equation.
What law must be obeyed when balancing a chemical equation?
A chemical equation must be balanced so that the same number of each kind of atom appears on both sides of the reaction arrow. Balancing an equation obeys the law of conservation of mass.
Why do chemical equations need to be balanced?
The bonds between atoms in the reactants are rearranged to form new compounds in chemical reactions, but none of the atoms disappear and no new ones are formed. As a consequence, chemical equations must be balanced, meaning that the number and kinds of atoms must be the same on both sides of the reaction arrow.
How does a balanced equation satisfy the law of conservation of mass?
A balanced equation demonstrates the conservation of mass by having the same number of each type of atom on both sides of the arrow.
What does it mean to balance a chemical equation?
A balanced equation is a chemical equation in which mass is conserved and there are equal numbers of atoms of each element on both sides of the equation.
Why must a chemical equation be balanced quizlet?
Why must chemical equations be balanced? They must obey the Law of Conservation of Mass that states that matter cannot be created or destroyed, it is conserved. Atoms are never lost or gained in chemical reactions, they are rearranged. The mass of the reactants must equal the mass of the products.
What happens if a chemical equation is not balanced?
Answer. If a chemical equation is not balanced it implies that either mass has been created or destroyed which is a contradiction to law of conversation of mass which states that matter can niether be created nor destroyed .
Why do we need to balance a chemical equation Class 7?
A chemical equation needs to be balanced so as to make the number of the atoms of the reactants equal to the number of the atoms of the products.
What does it mean for a chemical equation to be balanced quizlet?
balanced equation. a chemical equation in which mass is conserved
each side of the equation has the same number of atoms of each element. combination reaction. a chemical change in which two or more substance react to form a single new substance
also called a synthesis reaction.
How does a balanced chemical equation satisfy the law of conservation of mass quizlet?
How does a balanced chemical equation satisfy the Law of Conservation of Mass? During a chemical reaction, the total amount of matter stays the same. During a chemical reaction, matter is destroyed.
What is true about balanced equations?
If each side of the equation has the same number of atoms of a given element, that element is balanced. If all elements are balanced, the equation is balanced.
Why must a chemical equation be balanced before you can determine mole ratios quizlet?
It’s important to balance a chemical equation because there must be an equal number of atoms on both sides of the equation to follow the Law of the Conservation of Mass. You just studied 13 terms!