The sample will lose half of its mass after 4 hours. The half life.
82=4
The sample will lose half of the remaining four after another half life.
42=2 Hope this helps! :)
<span>No, xenon will not react on Nitrogen because xenon
only reacts with oxygen and fluorine. Xenon only reacts with the 2 elements
because these 2 elements contain a strong electronegative element which is high
in energy barrier that can move the electrons inside xenon elements. Xenon is an element with a symbol of Xe, it
is odorless and colorless gas. Common uses of xenon are flash lamps and arc
lamps. Xenon is a luminous element, it glows when placed near to high voltage
electric field.
</span>
<span>an oxide of iron, magnesium, aluminum, and chromium</span>
Answer:
An exothermic reaction occurs when the temperature of a system increases due to the evolution of heat. This heat is released into the surroundings, resulting in an overall negative quantity for the heat of reaction
Explanation:
1 million percent sure! GIMME BRAINLIEST PLS need 3 more to level up to new rank
Answer:
Dalton's atomic theory proposed that all matter was composed of atoms, indivisible and indestructible building blocks. While all atoms of an element were identical, different elements had atoms of differing size and mass.
