1. Nathan is given an image showing three rock layers and an intrusion of 10 points basalt. He is asked to determine the order in which these layers were
formed. Nathan already knows that when molten rock pushes its way into
rock layers already formed, it creates an intrusion. A diagram is provided.
Which of the following indicates when the basaltic intrusion must have
occurred?
Key
Sandstone
Limestone
口田園
Granite
Basalt
O After the limestone was deposited
O Before the granite was formed
After the sandstone was deposited
O Before all three layers were formed

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true

Part 1: include important facts found through your research. part 2: include your visual display. include your summary of “the chemistry of water” from the national science foundation website. include your experiment. part 3: include responses to the reflection questions.

One way in which the useful metal copper is produced is by dissolving the mineral azurite, which contains copper(ii) carbonate, in concentrated sulfuric acid. the sulfuric acid reacts with the copper(ii) carbonate to produce a blue solution of copper(ii) sulfate. scrap iron is then added to this solution, and pure copper metal precipitates out because of the following chemical reaction: (s) (aq) (s) (aq) suppose an industrial quality-control chemist analyzes a sample from a copper processing plant in the following way. he adds powdered iron to a copper(ii) sulfate sample from the plant until no more copper will precipitate. he then washes, dries, and weighs the precipitate, and finds that it has a mass of .