# What an equation tells us?

## What an equation tells us?

Chemical equations give information in two major areas. First, they tell us what substances are reacting (those being used up) and what substances are products (those being made). Second, the coefficients of a balanced equation tell us in what ratio the substances react or are produced.

### What tells the story of a chemical equation?

A chemical equation tells the story of a chemical reaction. Reactants are the starting substances in the reaction while products are the new substances that are formed. The large numbers in front of some of the formulae are called coefficients. These coefficients are used to balance the equation.

#### What information does a word equation contain?

A word equation should state the reactants (starting materials), products (ending materials), and direction of the reaction in a form that could be used to write a chemical equation. There are some key words to watch for when reading or writing a word equation.

What does a word equation mean?

chemical reaction
A word equation represents a chemical reaction using the names of the substances involved. Word equations do not show any chemical symbols or formulae.

How do you explain an equation?

An equation is a mathematical sentence that has two equal sides separated by an equal sign. 4 + 6 = 10 is an example of an equation. We can see on the left side of the equal sign, 4 + 6, and on the right hand side of the equal sign, 10.

## What is the purpose of equations?

The real power of equations is that they provide a very precise way to describe various features of the world. (That is why a solution to an equation can be useful, when one can be found. )

### What is a chemical equation homework?

Chemical equations are used to show chemical reactions. Chemical equations are typically written using the chemical formulas for the reactants and products. Chemical equations use an arrow to separate the two sides of the equation. Chemical equations are always written out in words.

#### What is a word equation and how it is written class 10?

A word equation is a chemical reaction expressed in words rather than chemical formulas. A word equation should state the reactants , products , and direction of the reaction in a form that could be used to write a chemical equation.

How do you use equation in a sentence?

Equation in a Sentence 🔉

1. Although he knew how to divide, the confused student could not figure out the numbers to plug into the equation.
2. The equation a= 9+3 can only be answered with the number 12.
3. Each algebraic equation was placed on the board for students to fill in with dry erase markers.

What do chemical equations tell us about substances?

Chemical equations give information in two major areas. First, they tell us what substances are reacting (those being used up) and what substances are products (those being made).

## Do you need a calculator to calculate an equation?

It is fine to have software to help you get through the tedious computations, but if you do not understand how to do the graph yourself, your calculator won’t be much help. For example, you may be given a graph and asked what equation it represents. Your graphing calculator won’t help you much there.

### Can you write an equation for an empty line?

You can initially write an empty line for what is not known, and later replace that with a variable. This equation is of course is then solved by subtraction, but it is better if you view it as an addition situation and write an addition equation for it.

#### Is the equation x a function of Y?

Take the relationship y = x^2 y can be a function of x because every x value has only one y value. But x could not be a function of y, because each positive y has two x values. (12 votes)