Identify the following:

1. The only 2 liquid elements.

2. The element in period 4, group 0.

3. The second metalloid in period 4.

4. The first element in group 4A.

How do you solve this problem A person accidentally swallows a drop of liquid oxygen O2 (l), which has a density fo 1.149 g/ml. Assumming the drop has a volumeof 0.035ml.

As the temperature of a chemical reaction in the gas phase is increased, the rate of the reaction increases because (1) fewer particle collisions occur (2) more effective particle collisions occur (3) the required activation energy increases (4) the

The element beryllium (Be, atomic number 4 and atomic mass 9) is right above magnesium (Mg, atomic number 12 and atomic mass 24) in the periodic table. How many more electrons does magnesium have than beryllium?

Where is the nucleus located in the atom

Given: 2AgNO3 + NiCl2 - > 2AgCl + Ni (NO3) 2 Determine the limiting reactant when 0.847 grams of silver nitrate is reacted with 0.650 grams of nickel (II) chloride?

What happens to the charges when an ionic compound forms

We dissolve 93 grams of sodium sulfate (Na2SO4) in 20 grams of water. What is the percent by mass of sodium sulfate in this solution? Answer in units of %.

The modern atomic model includes electrons orbiting the nucleus. which of the following parts of dalton's atomic model was disproved by the discovery of the electron? - atoms are tiny particles. - atoms cannot be divided into smaller parts.

tandard reduction potentials are 1.455 V for the PbO2 (s) / Pb (s) couple, 1.82 V for Co3 (aq) / Co2 (aq), 3.06 V for F2 (g) / HF (aq), 1.07 V for Br2 (l) / Br - (aq), and 1.77 V for H2O2 (aq) / H2O (l).

Which of the compounds listed below is more acidic than 1-butanol?