What state of matter has the highest entropy?

Element X is a solid that is brittle, lacks luster, and has six valence electrons. In which group on the Periodic Table would element X be found? (1) 1 (3) 15 (2) 2 (4) 16

Enter your answer in the provided box. From the following data, C (graphite) + O2 (g) → CO2 (g) ΔH o rxn = - 393.5 kJ/mol H2 (g) + 1 2 O2 (g) → H2O (l) ΔH o rxn = - 285.8 kJ/mol 2C2H6 (g) + 7O2 (g) → 4CO2 (g) + 6H2O (l) ΔH o rxn = - 3119.

What coefficients would balance equation: __MgS+__Na2O=_Na2S+__MgO a. 1,1,2,1 b. 1,2,2,1 c. 2,1,2,1, d. 1,1,1,1

Scientists have discovered a new planet with many craters. Which of the following would be an appropriate hypothesis?

A molecule of alkene has the chemical formula C3H4. How many carbon-carbon double bonds are present in the molecule? Choices:123

When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time

The highest cloud are known as

What is the mass of 4.85 X 10^22 atoms of iron (Fe) ?

If element x has 95 protons how many electrons does it have

Which of the following when dissolved in deionized water would make a good conducting solution? a) methanolb) sugarc) baking soda