Chemistry, 26.09.2021 02:00 ayoismeisalex
Based on their location in the periodic table which two elements are most likely to from covalent bonds with each other.
Magnesium (Mg) and sulfur (S)
Potassium (K) and Iodine (I)
Sodium (Na) and Bromine (Br)
Nitrogen (N) and Oxygen (O)
Answers: 1
Chemistry, 22.06.2019 13:00
Lab reagent, hypothesis test.a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl.these six measurements are assumed to be an srs of all possible measurements from solution.they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution.carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.
Answers: 1
Chemistry, 23.06.2019 03:50
How many liters of oxygen gas, at standardtemperature and pressure, will react with 35.8 grams ofiron metal? 4 fe (s) + 3 o2 (g) → 2 fe2o3 (s)
Answers: 3
Based on their location in the periodic table which two elements are most likely to from covalent bo...
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