Answer: 28.4 g of aluminum oxide is produced by the reaction of 15.0 g of aluminum metal
Explanation:
To calculate the moles :
The balanced chemical equuation is:
According to stoichiometry :
4 moles of produce == 2 moles of
Thus 0.556 moles of will produce= of
Mass of
Thus 28.4 g of aluminum oxide is produced by the reaction of 15.0 g of aluminum metal.
Answer:
Today, the atom is defined as the smallest particle that can be considered an element.
Explanation:
Energy is the ability to do WORK or cause CHANGE it’s measure in JOULES and is found in many different FORMS. Energy can be classified as KINETIC or POTENTIAL energy. (I’m pretty sure that’s correct, hope that helps!)
Answer:
the second one-Lavoisier, Dobereiner, Newlands, Mendeleev, and Moseley
J.J. Thomson discovered the electron by noticing that a beam of particles could be influenced by an electric or magnetic force and is denoted as option B.
<h3>What is an Electron?</h3>
This is referred to a subatomic particle which has a negative charge present and is involved in chemical reactions.
J.J. Thomson noticed that cathode rays were negatively charged due to deflection by magnetic and electric forces which signifies the presence of a negative particle.
Read more about J.J. Thomson here brainly.com/question/15361325
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