Who discovered the modern atom?

Acid and base ph PhET simulation lab

What is the name of an atom with 3 protons and 4 neutrons?

Would you vote to change the coin content or to keep them the same? Explain.

The burning of propane gas can be represented as a balanced chemical reaction as follows: C3H8 (g) + 5O2 (g) →3CO2 (g) + 4H2O (g) Calculate the number of liters of water vapor produced when 25.0 liters of oxygen gas are consumed.

Which of these elements has physical and chemical properties most similar to silicon (Si) ?

Is chromite the same as chromium?

Atoms of one element are converted to atoms of another element through (1) fermentation (3) polymerization (2) oxidation (4) transmutation

Of the following, which is NOT an example of a seed plant? a. peanuts c. oranges b. peat moss d. wheat?

In Dna, guanine always forms hydrogen bonds with?

An elements atomic number is 57. How many protons would an atom of this element have?