Answer:
Reactants are initiators of a chemical reaction whereas products are substances produced as the end of that reaction.
Explanation:
In a chemical reaction, there are two categories of substances involved: reactants and products.
The reactants are those substances utilized in a chemical reaction which undergo certain changes to produce different substances at the end of the reaction known as products.
On can write a chemical equation as:
M+N→MN, where M and N are the reactants and MN is the product.
For example,
Zn + S → ZnS
|___| ↓
Reactants Products
As you can notice when writing a chemical equation, reactants are always written on left hand side of the arrow and the products on the right hand side.
<h2>
Answer: 80 grams</h2>
Explanation:
This problem can be solved using the <u>Radioactive Half Life Formula</u>:
(1)
Where:
is the final amount of the material
is the initial amount of the material (the quantity we are asked to find)
is the time elapsed
is the half life of cobalt
Knowing this, let's find from (1):
This is the same as:
(2)
<u>Finally:</u>
<u></u>
>>> This is the amount of grams in the original sample
Answer:
F = 1400 N
Explanation:
It is given that,
Mass of the ball, m = 70 kg
It is moving with an acceleration of 20 m/s². We need to find the force exerted by the ball.
Force is given by the product of mass and acceleration. So,
F = ma
So, the force of 1400 N is exerted by a metal ball.
Explanation:
It is given that,
Mass of copper, m = 207 g
Specific heat of copper,
Heat absorbed,
Initial temperature,
Let is the final temperature of copper. Heat absorbed is given by :
So, the final temperature of the copper is 143.13 degree Celsius. Hence, this is the required solution.