Why scientist form a hypothesis

What is the Kb value for a 0.17M solution of unknown with a pH of 9.45?

An air mattress is filled with 16.5 moles of air. The air inside the mattress has a temperature of 295 K and a gauge pressure of 3.5 kilopascals. What is the volume of the air mattress? The volume of the air mattress is liters.

Which statements accurately describe soap? Select one or more: A. Soaps react with ions in hard water to create a precipitate. B. Soaps are both hydrophobic and hydrophilic. C. Soaps work in solutions of any pH. D.

How many moles are 1.2x1025 molecules of NO2?

A climate-control heat pump can both heat and cool a building by A. moving heat energy from a low-temperature source to a high-temperature sink. B. moving heat energy from a high-temperature source to a low-temperature sink. C.

Convert 0.023 kg to centigran

How many unpaired electrons arethere in Cu1 + ion

A 750 mL sample of nitrogen is heated from 30°C to 92 C at constant pressure. What is the final volume?

Write a brief explanation about why a plant extract is a mixture

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