How many grams of hydrogen are in 46 g of CH4O? A) 5.8 B) 1.5 ...

[cdr_15]

How many grams of hydrogen are in 46 g of CH4O?
 
  A) 5.8
  B) 1.5
  C) 2.8
  D) 0.36
  E) 180

Question 2

Which reaction produces a decrease in the entropy of the system?
 
  A) CaCO3 (s)  CaO (s) + CO2 (g)
  B) 2C (s) + O2 (g)  2CO (g)
  C) CO2 (s)  CO2 (g)
  D) 2H2 (g) + O2 (g)  2H2O (l)
  E) H2O (l)  H2O (g)

Question 3

The most common sulfur ion has a charge of ________.
 
  A) 2-
  B) 1-
  C) 4+
  D) 6+
  E) Sulfur does not form ions.

Question 4

Si is the symbol for the element ________.
 
  Fill in the blank(s) with correct word

[zhanghao]

Answer to Question 1

A

Answer to Question 2

D

Answer to Question 3

A

Answer to Question 4

Silicon

[cdr_15]

Thank you!

[zhanghao]

Always glad to help...