An atom has a mass number of 24 and 13 neutrons. What is the atomic number of this atom?

What is an alkali metal with fewer than 10 protons in its nucleus?

Why does the dimethylaniline couple with the diazonium salt at the para position of the ring?

Determine the ions (with charges) that make this compound. Cation, Anion H2SO4

A compound has a molar mass of 108.5g and an empirical formula of C3H5O2Cl what is the molecular formula A. C3H5O2Cl B. C2HOCl2 C. CHO2Cl D. C3HOCl

Which method would be best to separate a mixture of sugar and water

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?

When a cell is in late anaphase of mitosis, which of the following will we see?