An Atom's mass number is 210 and its atomic number is 85. How many neutrons does the atom have?

a. 85

b. 125

c. 210

d. 295

A newly developed technology allows waste to be broken down into separate elemental forms. The end products are a hydrogen-rich gas and a solid, with very little greenhouse gases released.

E.) MO (NO2) 3 What's the name

A 6.00L tank at - 6.4°C is filled with 8.62g of boron trifluoride gas and 16.9g of chlorine pentafluoride gas. You can assume both gases behave as ideal gases under these conditions. Calculate the mole fraction of each gas.

What is the pH of 0.0001 M NaOH

Write a balanced chemical equation describing the oxidation of Cl2 gas by Cu3 + to form chlorate ion (ClO3-) and Cu2 + in an acidic aqueous solution.

What happens to a reactant molecules when forming product molecules

Which is the atomic number of an atom with six valence electrons

O2 + CS2 → CO2 + SO2 Which of the following shows the equation balanced?

Convert 970. mm Hg to atm.

The addition of a catalyst in a chemical reaction (A) increases the concentration of products at equilibrium. (B) increases the fraction of reactant molecules with a given kinetic energy.