What is the mass of H2O produced when 10.0 grams of H2 reacts completely with 80.0 grams of O2?

A (70.0 grams)

B (90.0 grams)

C (180.0 grams)

C (800.0 grams)

What are the properties of coins?

Cu (NO3) 2 + Zn (s) → Cu (s) + Zn (NO3) 2 is an example of which type of reaction? Combustion Decomposition Single-displacement Double-displacement

Ammonium nitrate is an ingredient in cold packs used by sports trainers for injured athletes. Calculate the change in temperature when 42 g of ammonium nitrate (NH&NOs, 80.1 g/mol) dissolves in 250 g water.

An element's identity can be determined from its

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A data table shows the heght of a person on his birthday each year ten years what is the independent varible

Convert 0.185mol sucrose (C12H22O11) into grams.

Is there a difference between the freezing temperature and the melting temperature? Explain your answer in terms of numerical values, physical change and energy changes

When an acid and a base react, a particular type of salt is formed. This is an example of what type of reaction? A. physical only B. chemical only C. physical and chemical

A chemist adds 0.55 L of a 4.69M silver nitrate (AgNO3) olution to a reaction flask. Calculate the mass in kilograms of silver nitrate the chemist has added to the flask. Be sure your answer has the correct number of significant digits.