Determine the oxidation number of oxygen in the carbonate ion found in malachite

The thermal decomposition of phosphine (ph3) into phosphorus and molecular hydrogen is a first-order reaction: 4ph3 (g) → p (g) + 6h2 (g) the half-life of the reaction is 35.0 s at 680°c. calculate the first-order rate constant for the reaction:

What is the ratio of fe 3 ions to o2 - ions in a neutral compound? a. 1:2b. 2:1c. 2:3d. 3:2

Explain what you think causes planets to have weaker or stronger gravity than Earth. Predict what gravity would be like on a planet with a mass equal to Earth's but a diameter half the size of Earth's.

Use the reaction i2 (s) i2 (g), h = 62.4 kj/mol, s = 0.145 kj / (molk), for question 10. which direction of the reaction is favored at 298 k (room temperature) ?

Type the correct answer in each box. (1.20 x 104) Ⓡ (2.152 x 102) = x 106 208 5.3

Why is the correct name of compound Silicon Pentoxide and NOT Silicon Pentoxide?

10. The density of aluminum is 2.7 g/cm². A 27g piece of aluminum will have what volume?

Which type of heat transfer involves the movement of warmed material? A. radiation B. conduction C. convection

During which stage of the cell cycle dies the cell condense chromosomes and break down the nuclear envelope

Why does sucrose cause tooth decay?