A person forms 8.79mol of C4H10 according to the reaction below. How much energy, in kilojoules, was released? (Use a negative number if energy is released and a positive number if energy is added.) (Round to 2 Decimal Places) = A H4C (s) + 5H2 (g) → C4H10 (g) - 125.6 kJ/mol​

Calculate the estimated density of each ball. use the formula d = m/v where d is the density, m is the mass, and v is the volume. record your calculations in table a of your student guide. given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. record your prediction in table a. what is the estimated density of the table tennis ball? record your answer to the nearest hundredth

Why is the bottom layer of a trophic pyrimid the

An unknown insoluble substance displaced the water shown. it's mass is indicated on the triple beam balance. mass = a. 694 b. 693.5 c. 693.0 d.693.8