Helppp. Calcium reacts with bromine to form Calcium bromide Ca - - - - > Ca+2

Br2 - - - - > 2br

A. Complete the equation by adding electrons

Actually Welcome to the Concept of the Chemical Bonding.

Since we know that, calcium shares 2 electrons and Bromide being a halogen accepts 1 electron at a time,

So 2 bromides combine together to form a bond with Calcium, so we get as,

Ca2+ + 2Br -----------------------> CaBr2

CaBr2 is the compound formed.

calculate how many grams of ammonia can be produced from 4.21 grams of

n2 + 3h2 = 2nh3

my answer:

25.0g n2 x (1 mol/ 28.0gn2) x (2 mol nh3/ 1 mol n2) x (17.0g nh3/ 1 molnh3) = 30.36g n2

25.0g h2 x (1 mol h2/ 2.00g h2) x (2 mol nh3/ 3 mol h2) x (17.0g nh3/ 1 mol nh3) = 141.67g h2

lr = n2

well, they made a movie about how animals lived there.

rotten tomato score 95%

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