Its overall charge is zero because it has 2 electrons 2 protons and 2 neutrons also it is zerovalent in nature as it is an inert gas
Answer: Law of Conservation of Mass.
Explanation:
Law of Conservation of Mass states that during a chemical reaction mass neither created nor be destroyed or total mass of the reactants is equal to the total mass of the products in balanced chemical equation.
![CH_4+2O_2\rightarrow CO_2+2H_2O](https://tex.z-dn.net/?f=CH_4%2B2O_2%5Crightarrow%20CO_2%2B2H_2O)
Total mass on the reactant side :
(Mass of one methane molecule + mass of two oxygen molecules)
=![(12 amu+4(1 amu))+(2(32 amu))=80 amu](https://tex.z-dn.net/?f=%2812%20amu%2B4%281%20amu%29%29%2B%282%2832%20amu%29%29%3D80%20amu)
Total mass on the product side :
(Mass of one carbon-dioxide molecule + mass of two molecules of water):
=![(12 amu+2(16 amu))+(2(18 amu))=80 amu](https://tex.z-dn.net/?f=%2812%20amu%2B2%2816%20amu%29%29%2B%282%2818%20amu%29%29%3D80%20amu)
Total mass on the reactant side = Total mass on the product side = 80 u
Answer:
w/v% = gm per 100 ml
75gm X gm 7500
------- = ------ == --------
1500ml 100ml 1500X
X=5%
Answer:
yes. they can block the wind which causes top soil erosion and they also soak up some the water in the soil
Answer:
250mL volumetric flask
Explanation:
A beaker is a cylindrical glass or plastic vessel used for holding liquids. Its principal use is not measuring volumes with accuracy
An erlenmeyer flask is used to mixing or stirring solutions, is not used to measure volumes.
A volumetric flask is a glass instrument used in lab that is <em>calibrated to contain a precise volume at a certain temperature. </em>
That means if you want to make a solution with accuracy you must use a <em>250mL volumetric flask</em>.
I hope it hepls!