In the third period of the periodic table, sodium is followed by magnesium, aluminum, silicon, and phosphorus. Which of these elements has the smallest atomic size?

A compound takes on: A. the properties of the strongest elements that compose it B. A mixture of the properties of the elements that compose it C. The properties of the most abundant elements that compose it D.

Suppose that Max and Maria recorded data from the same buret Their data are shown to the right What is the most obvious error that Max made?

Which of the following is a covalent molecule? A. Beo B. NaCI C. CaF2 D. NH4

If you pour hot soup into a bowl and it stays cool to the touch you can assume

You suspect that a serious developmental disorder is due to a chromosome abnormality and prepare a karyotype from an affected individual.

5. Identify a suitable method that would be used to separate mixture of the follow [b]Water and ethanol c]Table salt dissolved in water d] iodine and potassium Pul the table below

How much energy is needed to convert 57.3 grams of ice at 0.00°c to water at 75.0°c? specific heat (ice) = 2.10 j/g°c specific heat (water) = 4.18 j/g°c heat of fusion = 333 j/g heat of vaporization = 2258 j/g?

A certain first-order reaction (A→productsA→products) has a rate constant of 9.90*10-3 s-1s-1 at 45 ∘C∘C. How many minutes does it take for the concentration of the reactant, [A][A], to drop to 6.

Assign the oxidation number for (NH4) 3PO4

When gold is melted and formed in a mold to make a piece of jewelry, what type of change is taking place?