<span>HCl + MnO2 → MnCl2 + H2O + Cl2
In order to balance this, we have to have the same number of electrons of each element on both sides. Here's how to do it:
4HCl + MnO2 </span>→ MnCl2 + 2H2O + Cl2
You can see that now there are 4 atoms of H on the left, and 4 on the right (left: 4H, right 2H2 = 4H). The number of electrons for Mn is 1 on both sides, and for O is 2 on both sides. For Cl, on the left, there are 4 electrons, and on the right there are 4 as well (left: 4Cl, right: Cl2 + Cl2 = 4Cl).
So, based on this, the coefficient for HCl is D. 4.
The volume of 1.0 g of nitrogen in a balloon is increased. It causes: the mass of the gas to decrease the density of the gas to increase and the pressure of the gas to decrease the temperature of the gas decrease.
<h3>What is volume?</h3>
How much space an object or substance takes up.
If you increase the temperature of the gas in the balloon, the pressure will initially increase. The balloon will expand until the pressure inside drops back down and is equal to the pressure outside.
If you increase the atmospheric pressure, the balloon will compress until the pressure inside equals the new pressure outside.
If you remove gas from the balloon, the pressure will drop, causing the balloon to compress until the pressure is again equal to the pressure outside.
if you place the balloon underwater, it will be under greater pressure, causing the balloon to compress until the inside pressure equals the new outside pressure.
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Answer:
safety glasses, safety goggles, face shield, they protect your eyes from harmful liquids, bright lights
Think it has something to do with the pangea theory that millions of years ago the continents were all smushed together and over time they got pushed apart so maybe the dinosaurs were moving around when it was all together and then they died and it moved apart?
Answer:
There are three nitrogen atoms in the products. The law of conservation of mass states that the amount of substance should be the same before and after a reaction. ... balanced because the total number of oxygen atoms is 3.
Explanation:
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