If you burn 45.2g of hydrogen and produce 404g of water, how much oxygen reacted

What term describes isotopes with an unbalanced number of neutrons?

A beaker of nitric acid is neutralized with calcium hydroxide. Write a balanced molecular equation for this reaction

The volume of water that must be added in order to dilute 40mL of 9.0M HCl to a concentration of 6.0 M is closest to: (A) 10 mL (B) 20 mL (C) 30 mL (D) 40 mL (E) 60 mL

Which of these steps of the scientific method involves stating a relationship but not proposing an explanation for the relationship? A. scientific law B. hypothesis C. theory

A television uses 32 kWh of energy per year. how many joules does it use?

Which of these are physical changes in matter chech all that apply Boiling water A pencil being sharpened Exploding dynamite Freezing water Rotting cheese

If the total atmospheric pressure is 760.00 mmHg what is the partial pressure of CO2

Which statement is true? k The letter has neither reflection nor rotation symmetry. k The letter has rotation symmetry only. The letter has reflection symmetry only. The letter has both reflection and rotation symmetry.

What is the product of one equivalent of phosphorus and three equivalents of hydrogen? Draw it's Lewis structure, making sure to include all lone pairs (if necessary).

Why is hydrogen bonding only possible with hydrogen? Hydrogen is the most electronegative element. Hydrogen's nucleus is electron deficient when it bonds with an electronegative atom Hydrogen tends to form covalent bonds.