« previous next »

Author Question: general chemistry (Read 1589 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?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

General Intelligence is Related to Various Outcomes General Intelligence is Related to Various Outcomes
A TECH 2 scan tool is the factory scan tool used on General Motors vehicles. A TECH 2 scan tool is the factory scan tool used on General Motors vehicles.
To retrieve flash codes from an OBD-I General Motors vehicle, connect terminals A and B with the ... To retrieve flash codes from an OBD-I General Motors vehicle, connect terminals A and B with the ...
A general scheme for adding one amino acid in solid-phase peptide synthesis A general scheme for adding one amino acid in solid-phase peptide synthesis
Pressure Chemistry Pressure Chemistry
General Mathematics General Mathematics
Video: Knee Animation

For a complete list of videos, visit our video library