Answer:
The sample a which is solid at 20°C is "Iodine"
The sample b which is liquid at 20°C is "Bromine"
The sample c which is gas at 20°C is "Chlorine"
Explanation:
Iodine : It starts melting at 113.7°C, so the solid sample found is the iodine. Iodine is present in both solid as well as in vapor state. Basically it is kept in closed jars. Only when it reaches the temperature above the melting point is starts melting.
Bromine: It is a non metallic element that is present in the liquid state, being a member of halogen group. It is heavy, mobile and dangerous reddish brown liquid. It is corrosive in nature, when comes in contact with human tissue and causes irritation in eye when comes in contact with its vapor.
Chlorine: In room temperature it is gas, as it has weak intermolecular interaction which fails to keep the molecules closely attached.
Answer:
The organ bath is a traditional experimental set-up that is commonly used to investigate the physiology and pharmacology of in vitro tissue preparations.
Explanation:
because my mom told me
Answer:
Explanation:
1. can generate energy – Both , In landfills methane gas is produced which is used to generate electricity, like wise heat energy produced in incinerator is also used for producing energy
2. emits toxins through combustion – Incinerators produce dioxins which is a dangerous chemical
3. drains liquids into the ground – Land fill, leachate is a common issue with all landfill site.
4. releases greenhouse gases – Both, methane and other carbon gases are produced in both landfill and incinerators
5. requires a substantial amount of land – land fill site , needs a large land to dump the city waste
6. generate ash – Incenerator only
As a leaf cell is a plant cell contains chloroplasts for photosynthesis which the root hair cell does not have, leaf cell also contains larger vacuoles and the presence of a cell wall.
Answer: skin rashes or spread to the joints and blood. In Men: Discharge from the penis, swollen testicles. In Women: Vaginal discharge, pelvic pain, spotting.
