There are at least 7 strong acids
Answer:
refractors and reflectors
Explanation:
Answer:
3.88%
Explanation:
Given parameters:
Grams of solute = 3.55g of NaCl
Grams of solution = 91.55g of solution
Mass percentage
of NaCl(%) = grams of solute/grams of solution x 100
Mass percent = 3.55/91.55 x 100
Mass percent = 3.88%
Answer:
a. 1/3
In the picture- D. 4
Explanation:
The product of the gradients of perpendicular lines =-1
m1m2=-1
Given an equation of a line in the form y=mx+c, m is the gradient of the line.
For y= -3x-9, m=-3
m1m2=-1
-3×m2=-1
m2=1/3
The gradient of the perpendicular line is 1/3
For the question in the picture, y=-1/4x-9, m=-1/4
m1×m2=-1
-1/4m2=-1
m2=4
The slope of the line perpendicular to y=-1/4x-9 is 4
