The atomic number of sodium (Na) is 11. This is also the number of which of the following?

atomic mass

ionic charge

neutrons

protons

Which of the following is the correct SI unit to use to measure a length of rope? A) yards B) meters C) feet D) inches

Question 6 of 10 Which of the following would result in a transmutation? A. An alpha particle is emitted. B. A gamma ray is emitted. C. A neutron is absorbed. D. An electron is lost.

Convert 12 kcal to joules

The Law of states that if two elements can combine to form two different compounds, the masses of the one element that can combine with a fixed amount of the other element will be in a ratio of small whole numbers.

Which of these best explains what happens when ice melts to form liquid water?

You normally take 2 Ibuprofen (C13H18O2) when you have pain. Each one is 250 g. How many moles of ibuprofen do you take?

Atoms in a covalent bond are held together by what?

Draw the sulfur-containing product of the following oxidation reaction between two 2-methyl-1-propanethiol molecules. Draw all hydrogen atoms.

Describe the Earth's layers in relation to density

The first planet to be discovered using mathematical prediction was