The energy to move water And allow it to change from a to a gas or solid ultimately comes from the

All atoms of the same element contain the same number of protons. the atom that has 9 protons can be represented by the symbol?

An iron bar has a mass of 537 g. After the bar had been standing in air for a month, exactly one-eighth of the iron turned to rust (Fe2O3). Calculate the final mass of the iron bar and the rust.

Compare Dalton's model of the atom with the nuclear model of the atom.

Increasing order of unsaturation

Which element is a solid at STP? A. H2 B. I2 C. N2 D. O2

a solution is approximately 332.0 g of salt per kilogram of solution. Assume this salt is all NaCl. What is the molality of this solution?

What burns fuel to release thermal energy

Scientist call an organism that has two different alleles for a trait

The molar mass of water (H2O) is 18.02 g/mol. Yun needs 0.025 mol H2O for a laboratory experiment. She calculates that she needs 72.0 g H2O for the experiment. Yun's calculation was incorrect because she set up her unit conversion incorrectly.

I'm doing isotope homework and I need the find the number of protons, neutrons, and electrons first one is chromium-58 and chromium-63