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walker
Questions and answers by visitors named
walker
Questions (9)
how many sides must a polygon have
A polygon must have at least 3 sides.
1 answer
342 views
Use a straightedge to draw line XY. Then construct line RS so that RS = 2XY
4 answers
2,768 views
show that the product of three consecutive even integer is a multiple of 48
1 answer
460 views
Looking at the periodic table, determine the charge each atom will make when it bonds with other atoms.
Column A 1. Calcium (Ca):
3 answers
36 views
Match the following terms to the correct definition
Column A 1. chemical change: chemical change 2. physical change: physical
3 answers
82 views
Balance the following the chemical equation:
Mg + O2 → MgO
3 answers
64 views
Balance the following the chemical equation:
Al + O2 → Al2O3
3 answers
34 views
Balance the following the chemical equation:
MgO + CaS → MgS + CaO
3 answers
47 views
Balance the following the chemical equation:
N2 + O2 → NO
3 answers
26 views
Answers (2)
1. d 2. d 3. a
-k + -5k – -8k – 17k = -15
