What happens to the mass number of a nucleus that emits an alpha particle?

Given SiO2 + 4HF - -> SiF4 + 2H2O in this chemical equation how many grams of HF are needed for 182 grams of SiO2 to react completely?

The deep blue color of the starch and iodine solution disappears when it reacts with saliva. Which of the following best explains the rate of disappearance of the color when the substances in the test tubes were mixed? Faster in Bath 1 as molecules

Consider sodium oxide, Na2O. Choose the best explanation for the subscript, 2, from the list provided.

I need to know about mitosis and meiosis

For the reaction N2 (g) + O2 (g) 2NO (g), theKeq at 2130°C is 0.0025. Assume [N2] = 0.95 M, [O2] = 0.65 M, and[NO] = 0.050 M. Calculate Q and describe the direction thereaction will shift

2NO2 (g) Equilibrium N2O4 (g) NO2 and N2O4 undergo the reaction shown. When a sealed container of NO2 reaches chemical equilibrium, which must be true? f The maximum number of molecules has been reached. g No N2O4 is present.

How does a scientist critique another scientist's conclusion? A. By ignoring the first scientists date B. By Criticizing the scientist's personal beliefs C. By performing more experiments D. By reading secondary sources

What are some circumstances under which the coase theorem fails to apply?

Which mass of nacl is equal to 0.80 mole of nacl?

how do i Calculate the grams of silver chloride produced from 18.5 ml of 4.5M magnesium chloride with 99.2 ml of 1.75 M silver nitrate in a step by step?