8. a 10.0-g sample of magnesium reacts with oxygen to form 16.6 g of magnesium oxide. how many grams of oxygen reacted? 9. challenge 106.5 g of hcl(g) react with an unknown amount of nh (9) to produce 156.3 g of nh, cl(s). how many grams of nh (9) reacted? is the law of conservation of mass observed in the reaction? justify your answer.

8. 13.3g of Oxygen is reacted with 10.0g of Magnesium

9. 49.6g of Ammonia (NH₃) reacts with 106.5g of HCl

   The law of conservation of mass is observed in the reaction

Explanation:

8. The Relative Atomic Masses of the elements involved are:  

   Mg=24, O=16

   The equation for the reaction is given as  

   2Mg(s) + O₂(g) → 2MgO(s)  

   From the equation above

   Let's assume that the amount in gram of Oxygen required to react with 10.0g of Mg is x

   2(24)g of Magnesium is required to react with (16 x 2)g of Oxygen

   10.0g of Magnesium should react with x g of Oxygen  

   ∴ x = (10.0 x (16 x 2))/2(24) = (10.0 x 32)/48 = 13.3g of Oxygen

9.  The Relative Atomic Masses of the elements involved in the reaction are  

    H=1, Cl=35.5, N=14  

    The equation for the reaction is given as  

    HCl(g) + NH₃(g) → NH₄Cl(s)  

    From the equation above

    Let's say y equals the amount in grams of Ammonia involved in the reaction  

    (1 + 35.5)g of HCl reacts with (14+(1 x 3))g of Ammonia  

    106g of HCl should react with y g of Ammonia

∴ y = (106 x (14 + (1 x 3)))/(1+35.5) = (106 x 17)/36.5 = 49.6g of Ammonia

The  law of conservation of mass states that the total mass in a closed system (reaction) remains constant over time (i.e mass is neither gained or lost). In other words, the total mass of the reactant equals the total mass of the product.

Based on the reaction above, the total mass of the reactant (i.e HCl and NH₃) is 53.5g which is the same as the product (i.e NH₄Cl) which is also 53.5g.

to be fair, you have to have a very high iq to understand rick and morty. the humour is extremely subtle, and without a solid grasp of theoretical physics most of the jokes will go over a typical viewer's head. there's also rick's nihilistic outlook, which is deftly woven into his characterisation- his personal philosophy draws heavily from narodnaya volya literature, for instance. the fans understand this stuff; they have the intellectual capacity to truly appreciate the depths of these jokes, to realise that they're not just funny- they say something deep about life. as a consequence people who dislike rick & morty truly are idiots- of course they wouldn't appreciate, for instance, the humour in rick's existential catchphrase "wubba lubba dub dub," which itself is a cryptic reference to turgenev's russian epic fathers and sons. i'm smirking right now just imagining one of those addlepated simpletons scratching their heads in confusion as dan harmon's genius wit unfolds itself on their television screens. what fools.. how i pity them.

and yes, by the way, i do have a rick & morty tattoo. and no, you cannot see it. it's for the ladies' eyes only- and even then they have to demonstrate that they're within 5 iq points of my own (preferably lower) beforehand. nothin personnel kid