What is the atomic number of neon? What is the atomic mass of neon? Give your answer to the nearest tenth.

What two subatomic particles contribute to the density

Why is measuring the size of an atom difficult

Using the Henderson-Hasselbalch equation, calculate the percentage of an ammonia solution that would be in the ionic form at pH 9.40, assuming a pKa for the ammonium ion of 9.25.

the density of solid a is 2.70 a 6.86 g sample of solid a is transferred to a graduated cylinder containing 5.00 mL of water, and a 7.11 g sample of solid b is transferred to a graduated cylinder, also containing 5.00 mL of water.

Calculate the number of moles of aluminum, sulfur, and oxygen atoms in 4.00 moles of aluminum sulfate, al2 (so4) 3. express the number of moles of al, s, and o atoms numerically, separated by commas.

What feature distinguishes a neutral atom from an ion

What is urine made of?

How many grams of F - must be added to a cylindrical water reservoir having a diameter of 2.02 * 102 m and a depth of 87.32 m?

How do you know when it's the same element?

What is the difference between a pure substance and a mixture? How are the atoms different?