29.00gx11.000g equals to what? And then round to appropriate significant number.

What force is required to do 60 Joules of work in sliding an object 10 meters across a level floor?

An naoh solution contains 1.90 mol of naoh, and its concentration is 0.555 m. what is its volume?

Consider the following equation: 4NH₄ + 5O₂ → 4 NO + 6H₂O How many moles of water are produced when 2 moles of NH4 react with excess Oxygen gas?

Riley rubs two rocks together. She notices that some of the surface of one of the rocks was worn away to form small particles. What has happened to that rock?

Classify each substance as a pure substance or a mixture. If it is a pure substance, classify it as an element or a compound. If it is a mixture, classify it as homogeneous or heterogeneous. a. Sweat b. Carbon dioxide c. Aluminum d. Vegetable soup

Hemoglobin, the oxygen-carrying protein in red blood cells, has four iron atoms per molecules ad contains 0.340 percent iron by mass. calculate the molar mass of hemoglobin

Nancy wants to find out how the steepness of a hill's slope affects the amount of soil that erodes from it. She has soil, a long pan, and a pile of books with which to build a model hillside. She has a watering can to model rainfall.

Elements on the periodic table are arranged by increasing?

What is the difference between molecular formula and molecular model

The average kinetic energy of the atoms that make up a substance which is changing from a liquid to a solid is