10% solution means=
=
= 100 mg/mL
If the dentist inject 0.3 mL, that is equal to 0.3× 100 mg.
If the dentist inject 0.3 mL, that is equal to 30 mg.
So, as anesthetic procaine hydrochloride is often used to deaden pain during dental surgery. the compound is packaged as a 10.% solution (by mass; d = 1.0 g/ml) in water. When our dentist
injects 0.30 ml of the solution, 30 mg of procaine hydrochloride (in milligrams) is injected.
Alpha decay lowers the atomic number of an element. The correct option is B. Alpha decay is a type of radioactive decay in which an atomic nucleus emits an alpha particle, which is an helium particle. During this process, the atomic number of the nucleus is reduced by two and the mass number is reduced by 4.
→ is the balanced chemical equation.
<h3>What is a balanced chemical equation?</h3>
A balanced chemical reaction is an equation that has equal numbers of each type of atom on both sides of the arrow.
Half-reaction method:
Unbalanced chemical equation:
→
Oxidation half-reaction:
→ I
Reduction half-reaction:
→
Balanced chemical equation:
→
Oxidation number method:
Unbalanced chemical equation:
→
→
→
Balanced chemical equation:
→
or
→
Hence, → is the balanced chemical equation.
Learn more about the balanced chemical equation here:
https://brainly.in/question/46754758
#SPJ1
Ammonium nitrate
Ammonium = NH4+
Nitrate = NO3-