Aluminium is a fairly reactive metal that often has a protective layer on due to oxidation

with air. This means it sometimes seems reluctant to react. Name the protective layer.

Sit of seafloor spreading

How many valence electrons does an atom of this element have : 2e-8e-8e2e?

The prefix himbo-means heap : true false

A generic solid, X, has a molar mass of 78.2 g/mol. In a constant-pressure calorimeter, 12.6 g of X is dissolved in 337 g of water at 23.00 °C. X (s) yeilds X (aq) The temperature of the resulting solution rises to 24.40 °C.

Solutions with high ph values have which of these properties? A) turns litmus paper red B) feels slippery C) taste sour D) gives off hydrogen gas when reacted with metal

Which term best describes the water in a sugar-water solution?

What are the forces that create electromagnetism?

The nose is an organ that acts as an airway for oxygen to enter the body. The nose also contains hairs that trap small foreign objects and stop them from entering the body. Which two systems does the nose play a role in? A. respiratory and immune B.

HBr + Mg (OH) 2 MgBr2 + H2O

What is the ability of a substance to be pulled into a wire? A malleability B ductility C conductivity D solubility