A nucleus is like ...

Which of the following is true about about sodium chloride? Substance calcium carbonate iron oxide Chemical Formula Caco Feo MgSio magnesium silicate Sio silicon dioxide sodium chloride Naci It is made up of 2 elements O It is made up of 3 elements

Does filtering separate a solution into it's components? explain

When 7.50 grams of Iodine (I2) is added to 48.7 grams of Carbon Tetrachloride (CCl4), the iodine dissolves and a solution is formed. What is the weight percent of the iodine in the solution?

A change where compounds are formed or decomposed is a (n) physical change phase change nuclear change chemical change

Some compounds, like carbon dioxide, are gaseous at room temperature, while others are solid at room temperature. Why is this?

How does ease of oxidation correlate with activity? Do highly active metals tend to donate electrons or accept electrons from other metals?

A horizontal row of elements in the periodic table is known as a group or period

When forces attracting solvent particles to each other are broken, what is provided for a solution? energy for the solute to precipitate space for the solute in the solvent inertia for the solute to move into the solvent nothing is provided

What occurs when a magnesium atom becomes a magnesium ion?

Two electrons are shared equally in bromine. what type of bond is represented between the bromine atoms in this Lewis structure