What is the pH of a neutral solution at 25°C?

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High-energy photons emitted by a radioisotope

When reactions do not produce a gas as a product, what other way (s) can the progress of a reaction be measured in order to calculate a rate of reaction?

Why does the temperature not change during a phase change? There is a change from potential energy to kinetic energy. Changes in potential energy do not result in temperature changes No one really knows.

Which two terms below BOTH describe the igneous rock granite? felsic and extrusive ultramafic and intrusive felsic and intrusive

What are the charges of families 1, 2, & 13 (boron family) if/when they become Ions

A hypothetical element consists of 2 isotopes of masses 84.95 amu and 86.95 amu with abundance of 37.1% and 62.9% respectively. What is the average atomic mass?

How do polar molecules respond when they are placed between two metal plates one positively charged and one negatively charged?

As the temperature of a gas increases, the volume also increases. Which kind of relationship exist between temperature and volume? divergent direct O inverse O no relationship

Given the following densities at 25°C magnesium: 1.7 g/cm3 graphite: 1.8 g/cm3 iron: 7.9 g/cm3 A block of iron has a mass of 819 g. What is the mass of a block of magnesium that has the same volume as the block of iron?

The direct transfer of heat from one substance to another substance that it is touching is called