Why were they put into water before we tested them?

Calculate the moles in 8083.8 mL of a gas at STP

Nitrogen dioxide decomposes at 300°C via a second-order process to produce nitrogen monoxide and oxygen according to the following chemical equation. 2 NO2 (g) → 2 NO (g) + O2 (g). A sample of NO2 (g) is initially placed in a 2.

Methane (CH₄) can react with oxygen (O₂) to produce carbon dioxide (CO₂) and water (H₂O). The balanced chemical reaction shows that, for every mole of methane reacted, the number of moles of water formed is: a. 1/2 b. 1 c. 2 d. 4 e. 8

What's the net force acting on an 18-kg object if an acceleration of 3.0 m/s2 is produced? A. 12 N B. 6 N C. 54 N D. 36 N

Explain why a block of gold is more dense then a block of iron of equal size

Are 3 eggs the same quantity as 3 dozen eggs?

What is an empirical formula? O A. The chemical formula that reveals how the molecule actually exists in nature O B. The chemical formula that is written in terms of percent composition O C.

What part of an original isotope's number of atoms remains after two half lives?

What gas has formed when bubels form when water is boiled?

A physical property can be observed or measured without changing the identity of a substance. Which of these choices describes a physical property? The temperature at which a liquid will boil. The tendency of a substance to explode.