Grade 10 Chemistry Homework # 3.11
(show your work)
1 Given the reaction represented by the following unbalanced equation:
NO(g) + O.(g) NO(g)
a. Balance the equation,
b. What is the mole ratio of NO, to 0,?
c. If 20.0 mol of NO, form, how many moles of O, must have been consumed?
d. Twice as many moles of NO, form as moles of NO are consumed. True or False?
e. Twice as many grams of NO, form as grams of NO are consumed. True or False?
2. Given the following equation: N2(g) + 3H2(g) → 2NH(g) There are six different mole ratios in this system.
Write out each one.
3. Given the following equation: 4NH3(g) + 6NO(g) → 5N2(g) + 6H2O(g)
a. What is the mole ratio of NO to H. O?

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.

the awnser is group 12

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.