« previous next »

Author Question: general chemistry (Read 1643 times)

itsmyluck

  • Hero Member
  • *****
  • Posts: 546
on: Feb 5, 2014
Heating removes something something from the metalic substance to make calx.
Is this a reasonable hypothesis?
How could you test the hypothesis?
Can you think of an alternative hypothesis that could also explain the observations?


Hawke

  • Hero Member
  • *****
  • Posts: 679
Reply #1 on: Feb 8, 2014
It's not a reasonable hypothesis because it doesn't contain an explanation as to why. In addition, the variables are not quantitative. We don't know how much heat, nor are we told the substance that is removed.

To test this hypothesis, you've have to heat the substance at several different temperatures to see how much heat is required. The amount of substance would have to stay constant.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

The general survey includes assessing every patient for signs of distress. The general survey includes assessing every patient for signs of distress.
GENERAL PRINCIPLES OF CELL COMMUNICATION GENERAL PRINCIPLES OF CELL COMMUNICATION
Olmsted, Vaux & Co., General plan of Riverside, Illinois. Olmsted, Vaux & Co., General plan of Riverside, Illinois.
Stages of General Anesthesia Stages of General Anesthesia
chemistry homework help energy related chemistry homework help energy related
General Mathematics General Mathematics
Video: Lipid catabolism ( ketogenesis and oxidation of glycerol) and Lipid anabolism (lipogenesis)

For a complete list of videos, visit our video library