chemistry
iron(III) hydroxide---FeH3 ammonium bromide----NH4Br copper(I) sulfate---Cu2SO4 tin(II) oxide-----Sn2O2
chemistry
Identify the monoatomic ion that has the following properties. a. 11 protons and 10 total electrons Na+ b. 9 protons and 8 valence electrons F- c. 47 protons and 46 total electrons Ag+ d. 28 protons and 26 total electrons Ni2+
chemistry
Give the name for each of the following: (a) SiF4----Silicon tetraflouride (b) CuBr2---Copper dibromide (c) MgCO3---Magnesium Carbonate (d) NH4NO3----Ammonium Nitrate
chemistry
give the total number of protons and electrons in each atom Cr2+ 24 protons 22 electrons Cr3+ 24 protons 21 electrons Ni3+ 28 protons 25 electrons Ni4+ 28 protons 24 electrons
chemistry
How many moles of nitrogen is 1.52 × 10 17 nitrogen atoms?
chemistry
we have to have the right number of sig figs so wouldnt 0.4 be the right answer in terms of sig figs
chemistry
A sample of magnesium weighs 10 grams. How many moles of magnesium are there in the sample? 0.4 moles?
chemistry
How many carbon(C) atoms are present in 30. mol of carbon? 1.8*10^25
chemistry
For each, give the total number of electrons, the number of valence electrons, and the number of the energy level that holds the valence electrons. Br-35 electrons--7 valence--4th level Kr-36 electrons--8 valence--4th level As-33 electrons--5 valence--4th level I-53 electrons-...
chemistry
Using a periodic table, determine the number of electrons held in energy levels 1-3 of each atom. B----2 in level 1--3 in level 2--0 in level 3 C--2 in level 1--4 in level 2--0 in level 3 Mg--2 in level 1--8 in level 2--2 in level 3
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