What is the mass of eyeliner in 150 ml of water

Which of the following is in the lanthanide family? a) uranium b) promethium c) silver d) gold

Which of the following is the molecular formula for a simple sugar? a. cooh b. h2o c. oh d. c6h12o6

Calculate the standard enthalpy of formation of liquid methanol, ch3oh(l), using the following information: c(graphite) + o2 latex: \longrightarrow ⟶ co2(g) latex: \delta δ h° = –393.5 kj/mol h2(g) + o2 latex: \longrightarrow ⟶ h2o(l) latex: \delta δ h° = –285.8 kj/mol ch3oh(l) + o2(g) latex: \longrightarrow ⟶ co2(g) + 2h2o(l) latex: \delta δ h° = –726.4 kj/mol