<span> If mass remains the same while the volume of a substance increases and the density of the substance will decrease or, volume decreases and density increase, 'cause density equals mass divided in volume, which means that volume and density are inversely proporcional</span>
None of them
1st property of nonmetals "They don't conduct electricity. Except Carbon
Chemical change. Made my answer simple enough and I hope it becomes brainiest. Happy to help!
Explanation:
heliocentric means having the sun in the middle/center in the solar system
geocentric means having the earth in the middle/center in the solar system
therefore your answers are:
the planets orbit the sun.
in 1543, Nicolaus Copernicus proposed the theory.
the evidence that led people to believe this was when Galileo observed that four moons orbited around Jupiter. in other words, heliocentric.
most of the stars are located in the milky way galaxy.
Answer: 0.99 grams of chlorine gas is produced by the reaction of 3.3g of ammonium perchlorate
Explanation:
To calculate the moles, we use the equation:
The decomposition of ammonium perchlorate is :
According to stoichiometry :
2 moles of 
produce = 1 mole of 
Thus 0.028 moles of produce=
of
Mass of 
Thus 0.99 grams of chlorine gas is produced by the reaction of 3.3g of ammonium perchlorate
