The next test would be the lime water test.
Explanation:
If placing the gas in lime water will turn the solution milky, then the gas is most probably carbon dioxide, the lime water (Ca(OH)₂) turns milky due to the formation of solid CaCO₃ that is insoluble after reaction with carbon dioxide.
Carbon dioxide also puts out the flame in the splint test because it does not support combustion.
Answer:
adding an acidic solution
Explanation:
Strong acids dissociate completely in water and the H⁺ ions react with the OH⁻ ions to make H₂O. If we add an acid to our solution of Ca(OH)₂, the acid protons would react with some of the OH⁻ ions and drive the equilibrium to the right. More of the solid Ca(OH)₂ should dissolve.
Answer:
The one with the full load.
Explanation: We can prove this by doing V^2 X M = KE
where V= velocity M= mass and KE= kinetic energy.
is both are traveling at the same speed (let's say 2kmph) and one has a mass of 50 kg with the other having a mass of 100kg.
(plug in the values) . 2^2 X 50 = KE and 2^2 X 100= KE
(simplify) 200=KE and 400=KE
This proves that a dump truck with a larger load (if traveling at the same speed) will always contain more energy than a dump truck with a smaller load.
Answer:
Explanation:
Titration is a method used to determine the concentration of a substance. The formula for this is:
Where M is the molarity of the acid or base and V is the volume of the acid or base.
We know that 46.0 milliliters of a 0.15 molar solution of nitric acid wereused in the titration. 25.0 milliliters of solution of calcium hydroxide of unknown molarity were also used.
Substitute these known values into the formula.
We are solving for the molarity of the base, so we must isolate the variable 
. It is being multiplied by 25.0 milliliters. The inverse operation of multiplication is division, so we divide both sides of the equation by 25.0 mL.
The units of milliliters (mL) cancel.
The original measurements have 2 or 3 significant figures. We always round our answer to the least number of sig figs, which is 2. For the number we calculated, that is the hundredths place. The 6 in the thousandths place tells us to round the 7 up to an 8.
The concentration of calcium hydroxide is approximately <u>0.28 M.</u>
If a substance is very stable it will take a lot to break it down. If it's unstable it will break down very easy and fast.
