What is the percent composition of Oxygen found in H2O?

A scientist observes several metals and records the following data. Which of the data sets represents qualitative data? (select all that apply) The mass of the metals The volume of the metals The softness of the metals The color of the metals

I will give brainliest! Which branch of chemistry deals with the mass relationships of elements in compounds and the mass relationshops among reactants and products in chemical reactions?

Given the following equation: Cu + 2 AgNO3 - --> Cu (NO3) 2 + 2 Ag If 89.5 grams of Ag were produced, how many grams of Cu reacted?

How are trials used in an experiment?

Examine the equation. 6CO2 + __H2O C6H12O6 + 6O2 In order to balance the equation, what coefficient must be placed in front of H2O? 4 1 6 12

What is a successful outcome for using a scientific method? develop a theory develop a hypothesis support a hypothesis analyze data

A ping pong ball with a mass of 2.20 grams rolls along a frictionless table with a velocity of 0.850 m/s. what is the momentum of the ping pong ball?1.87 g m/s2.59 g m/s1.59 g m/s3.04 g m/s

Elements have been discovered with up to how many energy levels

How many minutes are in 33.6 days

Select the equations that are correctly balanced. a. H2O + 2O2 → H2O2 b. Fe2O3 + 3H2 → 2Fe + 3H2O c. Al + 3Br2 → AlBr3 d. CaCO3 → CaO + CO2