A measurement gave a mass of. 34kg. This is the same as 340g

The table below gives some characteristics of element Y what is the identity of element Y

How does a refracting telescope work? A. It uses a concave lens, a convex lens, and a concave mirror to gather and focus light. B. It uses a concave lens and a convex lens to gather and focus light. C.

This is the equation for the formation of magnesium chloride. Mg (s) + 2HCl (l) → MgCl2 (aq) + H2 (g) Which are the reactants and the products in this reaction? A.

You are given the drawing of 2 waves. Notice, wave A is taller and Wave B is thinner. Since wave A is taller, wave

The weight of H2SO4 (molecular weight 98.1) in 50.0 milliliters of a 6.00-molar solution is ...

How is the Bohr atomic model different from the plum-pudding model? A. In Bohr's model, the atom's mass is found at its center instead of distributed throughout. B. In Bohr's model, the atom's mass is mostly made up of electrons instead of protons.

What does the cell theory state? A. that cells come from other cells B. that cells come only from animals C. that cells cannot be created or destroyed

For which one of the following molecules is the indicated type of hybridization not appropriate for M the central atom? a. BeCl2 sp2 b. SiH4 sp3 c. BF3 sp2 d. C2H2 sp e. H2O sp3

P4O10 (s) = - 3110 kJ/mol H2O (l) = - 286 kJ/mol H3PO4 (s) = - 1279 kJ/mol Calculate the change in enthalpy for the following process: P4O10 (s) + 6H2O (l) → 4H3PO4 (s)

Aluminum bromide reacts with chlorine gas to produce aluminum chloride and liquid bromide, according to the chemical equation below: 2A1Br3 + 3Cl2 + 2AlCl3 + 3Br2 How many moles of Aluminum chloride are made if 779 g of chlorine gas are consumed?