Posted by **Anonymous** on Monday, May 24, 2010 at 7:38pm.

For each:

Always true /sometimes true/never true.

1) the joule is the SI unit of force

2)the standard heat of formation for a substance is determined at 100 degrees C

3)all free elements in their standard states have a heat of formation of zero.

## Answer This Question

## Related Questions

- Chemistry - For each: Always true /sometimes true/never true. 1) the joule is ...
- Math - a.)If ABCD is a parallelogram, then ABCD is (always true, sometimes true...
- geometry - Is it always true, sometimes true, or never true that the centroid is...
- math - Determine whether the statement is always true, sometimes true, or never ...
- Chemistry (Check) - Classify each of these statements as always true, sometimes ...
- Chemistry check - Can someone make sure I have the right answer. The question is...
- Chemistry (Check) - Classify each of these statements as always true, sometimes ...
- Chemistry - I have a statement that I have to answer either always true, ...
- Pre-Calculus - Graphing Polynomials Decide whether each of the following is ...
- basic math - Is it always true, sometimes true, or never true that a regular ...

More Related Questions