Students perform several experiments recording the reactions in lab journals. The students write and balance the chemical equations for each reaction and include the state of matter
notations for each compound. The equations are below
Experiment 1
Equations from Experiments
MgO(s) + H2O(l) + Mg(OH)2(aq)
4Fe(s) + 302(g) - 2Fe2O3(5)
SO3(g) + H2O(1) - H2SO4(aq)
Experiment 2
Experiment 3
Which chemical involved in the student experiments is dissolved in water?
A Fe2O3
B
Fe
C Mg(OH)2
D
MgO

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

a  solution  is always transparent, light passes through with no scattering from solute particles which are molecule in size. the  solution  is homogeneous and does not settle out. a colloid is intermediate between asolution  and a  suspension. while asuspension  will separate out a colloid will not.

the answer is minerals.