What is the mass of subatomic particles

What are the noble gases on the periodic table?

Which is a binary ionic compound? A. MgCl2 B. C6H12O6 C. CO2 D. PO43 - E. CH4

When benzene (c6h6) reacts with bromine (br2) bromobenzene (c6h5br) is obtained: c6h6 + br2 → c6h5br + hbr what is the theoretical yield of bromobenzene in this reaction when 30.0g of benzene reacts with 65.0 g of bromine? b.

Sodium azide decomposes rapidly to produce nitrogen gas. 2 NaN3 - -> 2 Na + 3 N2 What mass of sodium azide will inflate a 60.0 L airbag for a car to a pressure of 1.50 atm at 32*C? (R = 0.08206 L*atm/mol*K)

How are parentheses used in chemical formulas? They are used to show atoms that are not part of the molecule. They are used to show which atoms are positively charged. They are used to show which atoms are most easily removed.

What is an element that has more valence electrons than fluorine and less energy levels than sodium?

Why can't we breathe in pure oxygen for long

In warm water conditions, female offspring hatch from eggs laid by painted turtles. Male offspring are produced under cold conditions.

It takes 53.0 J to raise the temperature of an 11.0 g piece of unknown metal from 13.0∘C to 24.2 ∘ c. What is the specific heat for the metal?

What happens to the velocity of a sound wave in air if the temperature of the air increases