What is the chemical formula for popcorn?

1. Generally speaking, where on the periodic table are the elements that form ions requiring! Roman numeral in their names?

Consider the equation: 2 nan3 (s) 2 na (s) + 3 n2. what is the mass of nan3 needed to produce 17.2 l nitrogen at stp?

Copper has an atomic number of 29. that means that there are 29 protons in the nucleus of each copper atom. That's what the atomic number is; the number of protons in an atom of a certain element.

Is a strap of leather a pure substance

The pH scale is called the logarithmic scale what does this mean?

Sprite: When mixed with red cabbage water, resulting solution turned red. Watermelon juice: When mixed with red cabbage water, resulting solution turned pink/purple. Egg whites: When mixed with red cabbage water, resulting solution turned green.

Uranium - 235 is used in nuclear fission. determine the number of protons and neutrons in uranium - 235

Calculation of Percent Composition Analysis of a 12.04-g sample of a liquid compound composed of carbon, hydrogen, and nitrogen showed it to contain 7.34 g C, 1.85 g H, and 2.85 g N. What is the percent composition of this compound?

A substance is tested with litmus paper. the blue litmus paper remains blue while the red litmus paper remains red. what can you conclude about the substance?

The density of iron = 7.86 g/cm^3, what is the volume of 150g of iron