What mass of lp gas is necessary to heat 1.5 l of water from room temperature (25.0 ∘c) to boiling (100.0 ∘c)? assume that, during heating, 15% of the heat emitted by the lp gas combustion goes to heat the water. the rest is lost as heat to the surroundings.

Which statement describes the appearance of a temperature-vs.-time graph? a horizontal line shows that the temperature increases at a constant rate over time. a vertical line shows that the temperature decreases at a constant rate over time. horizontal lines where the temperature is constant during phase changes connect upward-sloping lines where the temperature increases. horizontal lines where the temperature increases are connected by upward-sloping lines where the temperature is constant for each phase.

Write a net ionic equation to show that hydrofluoric acid, behaves as an acid in water.

If 3.00 g of titanium metal is reacted with 6.00 g of chlorine gas, cl2, to form 7.7 g of titanium (iv) chloride in a combination reaction, what is the percent yield of the product?