Classify the following statements regarding the law of mass conservation as true or false.

-it explains why mass is conserved

-it was developed from past observations

-it predicts future observations

-it is subject to experimentation and revision

A current of 0.44 A is passed through a solution of a ruthenium nitrate salt, causing reduction of the metal ion to the metal. After 25.0 minutes, 0.345 g of Ru (s) has been deposited. What is the oxidation state of ruthenium in the nitrate salt?

Calculate the acceleration of a boat that has been cruising at 15 m/s but speeds up to 45 m/s in about 6 seconds. Don't forget your units, m/s2

How was urea originally produced in the lab according to the text? Concentrated sulfuric acid was accidentally added to sucrose. Friedrich Wohler was working with ammonium cyanate & found crystals of urea in his breakers.

Which element is reduced in this reaction? 2cr (oh) 3+3ocl-+4oh-→2cro4-2+3cl-+5h2o enter the chemical symbol of the element?

Why is the Pacific Northwest receives so much precipitation?

How far is the Earth for the moon?

It is thought that organelles of eukaryotic organisms, such as mitochondria and chloroplasts (in plant cells) came from

How does temperature affect molecules

The color of Benedictâs solution is blue. What color does it change to in high sugar concentration?

What functional groups of the emulsifying agent provide the hydrophilic character? Do these groups affect the pH?