An element's atomic number is 45. how many electrons would an atom of this element have?

Hno3 has a PH of 1,25 what is the concentration of the hno3?

Solubility is affected by pressure, temperature, and type of solvent. a. True b. False

A gas with a temperature of 21.0°C and a volume of 10.0 L is compressed to 5.00 L. What will be the new temperature?

You have two glass bottles, one containing oxygen and one filled with nitrogen. part a how could you determine which one is which?

When atoms join together, the bond is either covalwnt or ionic

The bacteria and fungi that break down the plant and animal is classified as?

Which term best describes the substances that cause oil and water molecules in salad Dressing to interact and mix? surfactants miscible liquids immiscible liquids compressed molecules

C3H8 + 5O2 - > 3CO2 + 4H2O According to this equation, which ratio of oxygen to propane is correct? 1 - 5 grams O2 / 1 gram C3H8 2 - 5 moles O2 / 1 mole C3H8 3 - 10 grams O2 / 11 grams C3H8 4 - 10 moles O2 / 11 moles C3H8

Which diagram is the correct electron dot diagram for magnesium?

Which statement best describes electrolysis? Electrolysis stores electrons in an aqueous solution. Electrolysis converts chemical energy into electrical energy. Electrolysis separates protons and electrons in an electrolyte.