add lemon
It may have over heated, got hacked, possibly water damage... I would just send it in.
Any sugar, if heated, it will begin to melt, and become brownish and toffee-like. If heating continues too long, the toffee-like sugar will begin to burn and eventually leave a black and smouldering blob in the pan (very hard to remove to clean the pan). Heating in double pans with water in the bottom pan will help to prevent burning, but still keep an eye on the pans, while stirring.
Your basil plant may be turning black due to overwatering, lack of sunlight, or a fungal infection. Make sure to water it properly, place it in a sunny spot, and keep an eye out for any signs of disease.
Sugar burns when it is heated to a very high temperature. Salt does not burn.
Your dracaena plant may be turning black due to overwatering, poor drainage, or exposure to cold temperatures. Check the soil moisture, ensure proper drainage, and keep the plant in a warm environment to help prevent further blackening.
Your peperomia plant may be turning black due to overwatering, lack of sunlight, or a fungal infection. Make sure to adjust your watering schedule, provide adequate sunlight, and keep the plant in a well-ventilated area to prevent further issues.
Any gas will expand when heated, assuming you keep pressure constant.
The water in your body gets heated, and then the heated water perspires as sweat.
Put into a bowl containing water and a small amount of vitamin C powder
sprinkle with lemon juice
Cut the stalk, leave the leafs attached until ready to use. Put the stalk in a jar of water and keep on the counter.
The leaves of your Dracaena plant may be turning black due to overwatering, low light levels, or a fungal infection. Make sure to adjust your watering schedule, provide adequate light, and keep the plant in a well-ventilated area to prevent further leaf discoloration.