A row of elements in the periodic table is called a (n)

Heart cells require a certain balance of sodium and potassium ions to function. The blood, which is approximately 83% water, carries these two types of ions to the heart.

Binary ionic and binary molecular compounds have what two things that are similar in their composition

A sample of a uranium compound is found to be losing mass gradually. Explain what is happening to the sample.

Which is a pollutant associated with high-tech gadgets in landfills?

If granite is subjected to high temperatures and high pressures deep within earth but dose not melt what type of rock will be formed

Which of these is an example of a chemical change? Deflating a rubber balloon Combining rubber with sulfur Stretching an elastic rubber band Erasing pencil marks from a page

A gas is contained in a thick walled balloon. When the pressure change from __ torr to 777 torr, the volume changes from 2.58 L to 1.53 L and the temperature changes from 368 K to 495 K

Identify whether the following example is qualitative or quantitative data. the texture of a leaf:

In the ideal gas equation, 'n' represents the:

Protons and neutrons are composed of what? A electrons B. quarks C. ions D. molecules