The atomic number of an atom is determined by the number of protons it has..
It is also the whole number shown on the periodic table
Answer:
T₂ = 221.8 K
Explanation:
Given data:
Initial temperature = 57.9°C ( 57.9+273 =330.9 k)
Initial volume = 75.8 mL
Final volume = 50.8 mL
Final temperature = ?
Solution:
According to Charles's law,
V₁ /T₁= V₂/T₂
T₂ = V₂T₁/V₁
T₂ = 50.8 mL ×330.9 k / 75.8 mL
T₂ = 16809.72 mL.K/ 75.8 mL
T₂ = 221.8 K
A scientific control is an experiment or observation designed to minimize the effects of variables other than the independent variable.
Answer:
An acid increases the hydrogen ion concentration in a solution, while a base decreases the hydrogen ion concentration. Solutions with a pH of less than seven are acidic, while those with a pH greater than seven are basic (alkaline).
Explanation: