Only producers perform ...

A) photosynthesis

B) respiration

C) both A & B

D) neither A or B

How is the Hvap used to calculate the mass of liquid boiled by 1 kJ of energy?

A sample of carbon dioxide is contained in a 125.0 mL flask at 0.984 atm and 16.4 °C. How many molecules of gas are in the sample?

What is the molar mass of K2CO3?

The number with the most significant zero is 0.00002510 2.5100000 0.02500001 250000001 2.501*10_7

Calculate the molarity of each solution. a. 0.38 mol of lino3 in 6.14 l of solution b. 72.8 g c2h6o in 2.34 l of solution c. 12.87 mg ki in 112.4 ml of solution

Which of the following statements is true? Question 1 options: Nonmetals gain electrons to become cations. Metals gain electrons to become cations. Nonmetals lose electrons to become cations. Metals lose electrons to become cations. Save

What is the empirical formula of a compound that contains 40 percent carbon, 6.7 percent hydrogen, and 53.3 percent oxygen?

Molecular formula: C19H16 Double bond equivalence i. Calculate the number of double bond equivalents in the molecule from the molecular formula. (1 mark) ii. What does this indicate about the molecule? (1 mark)

A balloon that had a volume of 3.50 L at 25.0°C is placed in a hot room at 40.0°C. If the pressure remains constant at 1.00 atm, what is the new volume of the balloon in the hot room?

Balance the following equation. C7H14 + 02 - - - CO2 + H2O