The rate at which a certain drug is eliminated by the body follows first-order kinetics, with a half life of 81 minutes. suppose in a particular patient the concentration of this drug in the bloodstream immediately after injection is 1.8 minutes later? g/ml. what will the concentration be 324 round your answer to 2 significant digits. x 5 ?

- decrease the number of plants and animals living in the water.

water at room temperature is flowing through a pipe with pressure taps located 10 ft apart along one section of the pipe, which are connected to a mercury (s=13.6) manometer.

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.

idk what is it? is this a question that you know the answer or u dont