Chemistry

Which of the following is a covalent molecule? FeS MgS H_(2)S Li_(2)S

Cleaning chemistry, physical action and dictate the exposure time needed to clean in a washer disinfector. Pretreatment product Dilution rate Temperature Staffing

The polarity of a compound is dependent upon __ A. the presence of polar bonds B. the shape of the molecule C. the surrounding molecules A and B A C B A and C

Part 4: Chemistry Experiment 2 - Vinegar and Baking Soda Reaction Scenario: You want to see if changing the amount of vinegar affects the size of the gas bubble produced when mixed with baking soda. Questions: What is the independent variable? __ What is the dependent variable? __ What are two controlled variables? __ What would be a good hypothesis for this experiment? Which group is the experimental group? __ Is there a control group? If yes, which one?If not, suggest one.

What is the purpose of a limestone scrubber? a. to burn coal more efficiently b. to remove sulfur from coal c. to convert SO_(2) to carbonic acid d. to remove sulfuric acid from flue gases

How many moles are there in 82.5 grams of iron? 4.97times 10^25 0.677 1.48 55.85 none of the above

A free radical is: The finely branched terminal of an axon A molecule that is missing an electron and creates instability in surrounding molecules by taking electrons from them A cell organelle that uses oxygen to produce energy from food A chemical compound that counteracts the deterioration of stored food products

Based on molecular orbital theory, the bond order of the H-H bond in the H_(2)^+ ion is __ 1/2 3/2 2 1

What is a molecule that can act as a proton donor classified as? a base neutral an acid

Part 1: Changing the amount of Solute Solvent STEP 1: Add solute to the water by "shaking" the drink mix Make sure the concentration meter is in the water so you can read the number and unit. square square