How many grams of sodium nitrate (NaNO2) will dissolve in 100g of water at 20°C?

An element has 76 protons, 76 electrons, and 114 neutrons. what isotope is it?

Which of the following would likely form a heterogeneous mixture? A. sand and water. B. sugar and water C. baking soda and water D. salt and water

Assume the half-life of a radioactive element is 250,000 years. if you start out with 16 grams of this element, how much will be left after 1.5 million years?

It is not possible for a solid substance to change directly to the gas phase true or false

How many grams of c will be needed to make 4 moles of c

Regalo puntos : v vengan a mi prros

Write a net ionic equation for the overall reaction that occurs when aqueous solutions of phosphoric acid (h3po4) and potassium hydroxide are combined. assume excess base. use the pull-down boxes to specify states such as (aq) or (s).

What are the coefficients that will balance the skeleton equation below? n + h ⟶ nh?

Restate Newtons first law in terms of acceleration

Why is burning is not a recommended method of disposing plastics