An atom has 20 protons, 26 neutrons, and 20 electrons. what could be the atomic mass of this atom?

A 126-gram sample of titanium metal is heated from 20.0°C to 45.4°C while absorbing 1.68 kJ of heat. What is the specific heat of titanium?

What part of the nervous system is often called the "fight or flight" system? a. Parasympathetic c. Sympathetic b. Peripheral d. Autonomic

Why is the preferred equation for solution equilibrium of nacl an equilibrium between solid nacl and the ions?

In a reaction (at equilibrium) that makes more moles of gas than it consumes, what is the effect of increasing the pressure?

Silver metal that is exposed to the air tarnishes and becomes doing black overtime this is most likely the result of

To what chemical reaction class does this reaction belong? 2 mg (s) + o2 (g) 2 mgo (s)

Which best illustrates how particle arrangement changes when solids change into liquids

Express in scientific notation (6.0x10^4) (3.1x10^-1)

How do you measure the mass of a liquid?

Given the following information, calculate the mass for B-11. B-10 has a natural abundance of 19.9 percent, while B-11 has a natural abundance of 80.1 percent. The mass of B-10 is 10.013 amu.