6.5 half-lives.
carbon
When carbon dioxide is passed through lime water it will turn milky.
When excess CO2 is passed through lime water it forms calcium bicarbonate.
Carbon
The isotope U-238 has a halflife of 4.5 billion years, roughly the current age of the earth. As the sun is expected to consume the earth in about 6 billion years from now, less than 1.5 halflives will have passed by then. Therefore uranium will remain in the environment as long as earth exists, although at slowly decreasing levels.
carbon
The carbon rods have electrical resistance. Thisi causes them to heat when current is passed through them. The water gets heated by the carbon rods.
When carbon dioxide is passed through lime water it will turn milky.
When carbon dioxide is passed through lime water it goes cloudy.
it turns milky
When excess CO2 is passed through lime water it forms calcium bicarbonate.
Carbon
The isotope U-238 has a halflife of 4.5 billion years, roughly the current age of the earth. As the sun is expected to consume the earth in about 6 billion years from now, less than 1.5 halflives will have passed by then. Therefore uranium will remain in the environment as long as earth exists, although at slowly decreasing levels.
A precipitate of calcium carbonate is formed.
The soultion will turn a cloudy colored Leigh
When carbon dioxide is passed through lime water it goes cloudy.
This is the respiratory system. Carbon dioxide is passed out through the lungs.