Answer:
The answer to your question is: 5 friends
Explanation:
Data
Larry bought 12 1/2 pounds of candy
gave each friend 2 1/2 pounds
number of friends = ?
Process
Convert mixed fractions into improper fractions
12 1/2 = (24 + 1) / 2 = 25 /2
2 1/2 = (4 + 1) / 2 = 5/2
Divide the fractions
= 
= 5
Larry gave candies to 5 of his friends
Answer:
Cl₂(g) + 2 KBr(aq) ⇒ Br₂(l) + 2 KCl(aq)
Explanation:
Let's consider the unbalanced single displacement reaction between chlorine and potassium bromide.
Cl₂(g) + KBr(aq) ⇒ Br₂(l) + KCl(aq)
We will start balancing Cl atoms by multiplying KCl by 2.
Cl₂(g) + KBr(aq) ⇒ Br₂(l) + 2 KCl(aq)
Finally, to get the balanced equation, we have to multiply KBr by 2.
Cl₂(g) + 2 KBr(aq) ⇒ Br₂(l) + 2 KCl(aq)
The answer would be A: its container.
Gas will expand to fill whatever container it is put in.
Bleach is a common disinfectant used in laboratory settings.
mercury is a planet.
Answer:
Its a chemical change.
Explanation:
When baking soda and vinegar are mixed bubbles formed and new product is formed by both reactant. So its a chemical change because in a chemical change new substances are formed.
Chemical change:
The changes, that occur due to change in the composition of a substance and result in a different compound is known as chemical change.
These changes are irreversible
These changes occur due to chemical reactions
These may not be observed with naked eye
Example:
Combustion of fuel or wood: that oil or wood convert into energy, CO2 and ash in case of wood
Boiling of egg: that change the chemical composition of protein in the egg .
The reaction of Hydrogen and oxygen:
H 2 (g) + O 2 (g) -------------------------------------> 2H 2O (l)
