My mom said that if i get held back in 7th i will go back to 6th bc supposedly that means i diddnt learn enough in 6th is that true

If 63.8 grams of aluminum metal (Al) react with 72.3 grams of sulfur (S) in a synthesis reaction, how many grams of the excess reactant will be left over when the reaction is complete?

Convert 54.3 g into mg

0.000000048 scientific notation

The slight negative charge at one end of one water molecule is attracted to the slight positive charge of another water molecule.

What is the molar mass, in grams, of a mole of an element equal to? the number of electrons in the element the atomic weight of the element the atomic number of the element the number of neutrons in the element

Be sure to answer all parts. A concentration cell consists of two Sn/Sn2 + half-cells. The electrolyte in compartment A is 0.23 M Sn (NO3) 2. The electrolyte in B is 0.87 M Sn (NO3) 2.

Explain why the radius of an atom cannot be measured directly. (6.3)

Which measurement represents the largest volume? question 7 options: 4.6 l 4.6 * 10-3 l 46 cl 460 ml all represent the same volume?

Which statement explains how the bands in the crystal of a metal are like atomic orbitals? They both have localized electrons that orbit specific atoms. They both involve ionization of some atoms so bonding can occur.

In a system for separating gases a tank containing a mixture of hydrogen and carbon dioxide is connected to a much larger tank where the pressure is kept very low.