Other Chemistry Answers

the mass of 4.0 x 10^23 formula units of potassium chloride (KCI)

what volume of 6.0 M NaOH solution is needed to produce 3.0 L of 0.1 m solution

how many atoms of oxygen are there in three molecules of sulphur dioxide?

Ca(OH)2+HNO3-->what is the product

The combustion of the mineral pyrite (FeS 2 ) in oxygen gas produces another mineral hematite (Fe 2 O 3 ) and sulfur dioxide.

https://m.youtube.com/watch?v=Z7ctDtIZSag

lab observation

An element has 9 protons. What is it’s symbol and what is the mass in grams of the average atom in the element

a piece of chromium metal with a mass of 24.26g is heated in boiling water to 98.3 C and then dropped into a coffee-cup calorimeter containing 82.3g of water at 23.3 C. When thermal equilibrium is reached the final temperature is 25.6 C. Calculate the specific heat capacity of chromium

Which non-aqueous solvents are used to dissolve the following:

(a) grass;

 (b) paint;  

 (c) nail polish; 

(d) oil;

 (e) chewing gum

Given the following equation:            8 Fe + S₈ ---> 8 FeS

What mass of Fe is needed to react with 16.0 grams of sulfur (S₈)?

(Fe= 55.8, S=32)