In which of the following methods of heat transfer is it necessary for the objects to be directly touching one another?

How many microliters are in 47.9 mL?

The table below shows four samples of carbon dioxide and the temperature of the water that they were dissolved in. sampletemperature of water (°c) 178273355463which of the samples most likely had the lowest solubility?

Ammonia (NH3) can be produced by the reaction of hydrogen gas with nitrogen gas: 3H2 + N2→2NH3 A chemist reacts 2.00 mol H2 with excess N2. The reaction yields 0.13 mol NH3.

Calculate the number of moles in 2.4g of carbon

Element A has an electronegativity of 2.20. Element B has an electronegativity of 3.44. The bond of molecule AB is then best described as a:

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