How many elements make up this chemical compound CO2FeHN3CoBNa2

Which electron configuration represents an atom of magnesium in an excited state? (1) 2-7-3 (3) 2-8-2 (2) 2-7-6 (4) 2-8-5

What is the relationship between an atom and a molecule?

Which statement describes both homogeneous mixtures and heterogeneous mixtures?

Which of these best explains why the hydrogen Adams in a water molecule are attracted to Cl - ions in sodium chloride (NaCl) ?

6. (a) Which mixture (s) at home can be separated by the separation technique? A. Tea brewed with fresh Chinese tea leaves B. Homemade barley drink with barley seeds C. Fruit pulps in fruit juice D. All of the above

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?

What is the reactant (s) in the chemical equation below? 2Al (s) + 2NaOH (aq) + 2H2O () 2NaAlO2 (aq) + 3H2 (9) A. 2Al (s) + 2NaOH (aq) + 2H200) B. 2NaAlo2 (aq) + 3H2 (g) C. 2Al (s) D. 3H2 (g)

In an oil spill, why does the oil not mix with the sea water? A. Lipids are hydrophobic B. Lipids are hydrophilic. C. Lipids are saturated. D. Lipids are unsaturated.

What mass of KCL is contained in. 350 M solution of KCL?