# Which chemical equation will have equal masses from the reactant and product side?

## Which chemical equation will have equal masses from the reactant and product side?

The law of conservation of mass
The law of conservation of mass: The mass of the reactants must equal the mass of the products. The law of definite proportions: When making a certain chemical there is only one correct ratio of reactants.

## In which chemical equation is the number of atoms in the reactants the same as the number of atoms in the products?

The law of conservation of matter
The law of conservation of matter has been satisfied. When the reactants and products of a chemical equation have the same number of atoms of all elements present, we say that an equation is balanced.

What is a reactant and product in a chemical equation?

The substances that go into a chemical reaction are called the reactants, and the substances produced at the end of the reaction are known as the products.

### What is it called when the number of atoms of each element on both reactants and products are equal?

Give a reason why an equation is balanced with reference to the law of conservation of matter. Solution: When the number of atoms of each element of the reactant/reactants is equal to the number of atoms of the elements of the product/products is same, then the equation is said to be balanced.

### What is the first step in most stoichiometry problems?

the first step in any stoichiometric problem is to always ensure that the chemical reaction you are dealing with is balanced, clarity of the concept of a ‘mole’ and the relationship between ‘amount (grams)’ and ‘moles’.

What is a subscript in a chemical formula?

Review: Chemical formulas are used to describe the types of atoms and their numbers in a molecule or compound. The atoms of each element are represented by one or two different letters. When more than one atom of a specific element is found in a molecule, a subscript is used to indicate this in the chemical formula.

## What must never be changed in order to balance an equation?

The number of atoms of each element on both sides of the equation must be equal because matter cannot be created or destroyed. When balancing equations, the only numbers that can be changed are coefficients. Subscripts in a chemical formula cannot be changed to balance an equation.

## How do you know how many atoms are in an equation?

To find out the number of atoms: MULTIPLY all the SUBSCRIPTS in the molecule by the COEFFICIENT. (This will give you the number of atoms of each element.)

What’s a reactant example?

Examples of Reactants Reactants are what you start with in a reaction. The wax of a candle and oxygen in air are reactants in a combustion reaction. The products are carbon dioxide and water vapor. When you burn methane gas, the reactants are methane (CH4) and oxygen in air (O2).

### Is ammonia a reactant?

Reactants are substances initially present in a chemical reaction that are consumed during the reaction to make products. In this case, ammonia would be the reactant and nitrogen and hydrogen the products.

### Where stoichiometry is used today?

Stoichiometry is at the heart of the production of many things you use in your daily life. Soap, tires, fertilizer, gasoline, deodorant, and chocolate bars are just a few commodities you use that are chemically engineered, or produced through chemical reactions.

Which is more a reactant or a product in a chemical equation?

Now the number of hydrogen atoms is 8 on the reactant side which is more than that of the product side, hence we need to balance hydrogen atoms, and hence we multiply on the product side by 4. Now, we can see that number of hydrogen and oxygen atoms on both sides of the equation are same.

## Which is the correct description of a chemical equation?

Balanced chemical equation. The representation of a chemical reaction in the form of symbols (substances) is known as chemical equation. A chemical equation consists of reactants, products and an arrow showing the direction of reaction.

## How to balance reactants and products in a chemical reaction?

Now, we need to balance the above chemical reaction. We will first take the maximum number of atoms present on either side of the reaction, that we can find on product side. (Oxygen = 4). Then we multiply the number of oxygen atoms on reactant side by 4, such that the number of oxygen atoms on both sides of the reaction is balanced.

Which is the correct representation of a chemical reaction?

The representation of a chemical reaction in the form of symbols (substances) is known as chemical equation. A chemical equation consists of reactants, products and an arrow showing the direction of reaction. The equation in which number of atoms of all the molecules is equal on both sides of the equation is known as balanced chemical equation.