quiz02 - Weed Science, PLS 4601c Section 7644 and Grad....

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Weed Science, PLS 4601c Section 7644 and Grad. – Prin. Of Weed Science AGR 6932 Section 9212 University of Florida - Davie http://grove.ufl.edu/~turf/weedscience/ Philip Busey, turf@ufl.edu 954-579-3932 (cell) May 21, 2009 Quiz 2 –Natural sciences and mathematics (Review) 1. Using the table of periodic elements below, what is the atomic weight of water, H 2 O? a) 1 b) 3 c) 32 d) 33 e) None of the above
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Weed Science – Quiz 2 - Univ. Florida - Davie Page 2 2. Which elements are inert and do not generally react chemically)? a) H – Li – Na - K b) Be – Mg – Ca - Sr c) F – Cl – Br - I d) He – Ne – Ar - Kr e) None of the above 3. What is the approximate atomic weight of methane CH 4 ? a) 5 b) 12 c) 16 d) 32 e) None of the above 4. The molecular weight is about 162 for the herbicide MSMA (monosodium methanearsenate) which has the molecular formula CH 4 AsNaO 3 . What percent arsenic (As) is MSMA? a)
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 07/23/2011 for the course PLS 4601c taught by Professor Busey during the Summer '09 term at University of Florida.

Page1 / 4

quiz02 - Weed Science, PLS 4601c Section 7644 and Grad....

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online