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Questions (11)
Balance redox reaction through oxidation method of an acid
Cr2O7- + Cl- --> Cr3+ + Cl2
2 answers
258 views
How did they go from: 2As + 5H2O → As2O5 + 10e- + 10H+
To: 6As + 15H2O → 3As2O5 + 30e- + 30H+ When balancing a redox reaction
2 answers
155 views
For each of the following pairs of equations, determine whether they represent the same line, parallel lines, or neither of
2 answers
104 views
find the direction vector (d) from the normal vector (n).
n=(3,-1)
4 answers
132 views
For each of the following find a point on each line.
4x+3y-12=0
2 answers
89 views
State a direction vector for each of the following lines. A line parallel to x=9-3t, y=-4+t
2 answers
98 views
Given a=(2,1,0), b=(-1,0,3), c=(4,-1,1), calculate the following triple scalar and triple vector products.
a x b•c
4 answers
103 views
State whether the following expressions using the cross product and dot product are vectors, scalars, or meaningless.
a•(b x c)
10 answers
134 views
Find two vectors perpendicular to both (3, -6, 3) and (-2, 4, 2).
7 answers
97 views
Find a unit vector perpendicular to a=(4, -3, 1) and b=(2, 3, -1).
7 answers
109 views
calculat the component of a force of 200N at a directon of 60° to the force.
1 answer
381 views
Answers (5)
Does it matter which number you change the sign for?
What about (a x b)•(b x c) Why?
Why?
how about (a+b)xc
Why?
