How many neutrons does element X have if its atomic number is 21 and its mass number is 95?

What must happen for fluorine to become stable

Which type of heat transfer causes a person sitting by the fire to feel warm

9.86 x 10²⁸ O-atoms require what volume (L) N₂O₂ at STP?

Atomic weight of gold is 197.2 ami Calculate no of gram atoms in 7.5g of gold

What does the law say about energy? What about energy can change and what does not change, according to the law?

Which of the following polymers is used in plastic bottles and plastic containers? Select one: a. LDPE b. PVC c. Polystyrene d. HDPE e. Polypropylene

Which of the following statement is not true? A) The sun is involved in producing tides B) There can be two high tides in one location during a single day C) Only the oceans have tides D) If there is a high tide, there will be a low tide

A solution which has a concentration that exceeds its predicted solubility at a certain temperature and pressure would be -

Convert 4.992*1010 g to each of the following units. B. Mg c. mg D. metric tons

The ideal gas law shows us how a gas will behave under many conditions. The formula is: P V = n R T Where P = pressure, V = volume, n = amount of the substance, R = ideal gas constant, and T = temperature.