What? It would be nice if you show pic
Answer:b
Explanation:
The Kelvin degree is the same size as the Celsius degree; hence the two reference temperatures for Celsius, the freezing point of water (0°C), and the boiling point of water (100°C), correspond to 273.15°K and 373.15°K, respectively.
Answer:
false, Potassium and fluorine are not halogens.
only fluorine here is halogen.
potassium is an alkali earth metal it doesn't comes under category of halogens, but fluorine
is a non metal which comes under halogen family.
Base your answers to the following questions on the graph below, which shows the effect that average yearly precipitation and temperature have on the type of weathering that will occur in a particular region.
City
Avg. Yearly Temp (oC)
Avg. Yearly Precip (cm)
Albany, NY
9oC
98 cm
Washington, D.C.
15oC
111 cm
Phoenix, AZ
20oC
22 cm
Answer:
The mass left after 24.6 years is 25.0563 grams
Explanation:
The given parameters are;
The mass of the hydrogen-3 = 100 grams
The half life of hydrogen-3 which is also known as = 12.32 years
The formula for calculating half-life is given as follows;

Where;
N(t) = The mass left after t years
N₀ = The initial mass of the hydrogen-3 = 100 g
t = Time duration of the decay = 24.6 years
= Half-life = 12.32 years

The mass left after 24.6 years = 25.0563 grams.