Which is the correct orbital diagram for carbon?

2s

2p

OB. 1s

2s

2s

2p

C.

1

2s

2p

match isotopes to their uses dating bones dating groundwater killing cancerous cells analyzing rocks

Prepare approximately. 1n hcl by putting the correct amount of concentrated acid in a glass bottle and

A container holds 7.2 L of nitrogen at 25 °C. What will be its volume if the temperature increases to 70 °C? Hint: Use Charles' Law - (V/T1) = (V2/T2)

Calculate the heat lost by the hot water using your results for Experiment 3: Measuring the Enthalpy of Fusion of Water. Heat must be expressed in kilojoules (kJ). Q = (4.18 J/g °C) x (1 kJ/1000 J) x mass of water (g) x ΔT

Sodium bicarbonate is the chemical name for baking powder. Its chemical formula is NaHCO3. What does the subscript 3 mean? a) There are three molecules of sodium bicarbonate. b) There are three molecules of oxygen in sodium bicarbonate.

The number of neutrons in the nucleus of an atom can be calculated by 1. Adding together the numbers of electrons and protons 2. Subtracting the number of protons from the number of electrons 3.

Chemical or physical properties? titanium is less dense than water

Choose the element that would be the most reactive of the three. A. K c. Na b. Fr

Explain why iron structures need protection from corrosion while aluminium structures do not?

What is the charge associated with each side of the HI molecule? What is the percent ionic character of the H-I bond?