Gracie squeezed some grapes and kept the juice in a vessel for 5 days at room temperature. On the fifth day she found that the juice tasted sour and appeared frothy.

What caused this change?

The specific heat of a certain type of cooking oil is 1.75 j / (g·°c). how much heat energy is needed to raise the temperature of 2.83 kg of this oil from 23 °c to 191 °c?

How does the aufbau principle, in connection with the periodic law, lead to the format of the periodic table?

Why were scientists surprised to find coal in the arctic?

As matter changes it can what?

12. Why do real gases deviate from the ideal gas laws at low temperatures? Masses of individual particles increase as kinetic energy decreases. The volume occupied by molecules becomes a significant part of the total volume.

The standard metric units of density are: kg/N g/cm3 kg/cm3 g/L

Water obtained from natural resources does not show neutral pH. What is the reason behind this? The neutral nature of water changes due to its ability to dissociate into H + and OH - ions.

What Element is H? a. Calcium b. copper c. Tin d. aluminum

Weight measures A. How dense an object is. B. How large an object is. C. The amount of mass in an object. D. The effect of gravity on an object.

Valencies of all the elements in the periodic table