For every mole of Pb⁺² ions that are formed, how many moles of Cl⁻ ions are formed? (Refer to the reaction in the lesson above.

2

4

1

3

How to measure the rate of a chemical reaction

A 38.4-g sample of ethylene glycol, a car radiator coolant, loses 852 J of heat. What was the initial temperature of the ethylene glycol if the final temperature is 32.5°C? (c of ethylene glycol = 2.42 J/g·K)

Geology belongs to which main category of science? life science physical science earth science

Write balanced (a) molecular, (b) overall ionic, and (c) net ionic equations for the reaction between an aqueous solution of phosphoric acid, H3PO4 (aq), and an aqueous solution of sodium hydroxide. The products are sodium phosphate and water.

What stress will shift the following equilibrium system to the left? N2 (g) + 3H2 (g) ⇌ 2NH3 (g)

Given Mg (CO3) 2, CO2 and Cu3 (PO4) 2, provide the names for each of these molecules.

How does probability fit into the description of the atom?

Copper conducts electricity, while sugar, C6H12O6, does not. Can you explain why this is so in terms of structure and/or bond types.

During reflux and distillation, how is it possible to lose the product?

Scientist think that many species have one common ancestor. Which answer choice best tells why scientists think this way? Group of answer choices homologous structures all of the answer choices the fossil record vestigial structures