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Questions (24)
How did forced assimilation affect Aboriginal children?
A. It encouraged the children to learn their own language. B. It caused
3 answers
647 views
(a) RSTU is a cyclic quadrilateral in a circle of centre O.If RUT is 40°, what are the two values of <ROT (convex and concave)?
1 answer
501 views
(a) Simplify the following:
(i) i345 (ii) 32/(-5i) (iii) 6/(7-8i) (iv) 9/(-8+7i) (b) Find the nature of the stationary points on
1 answer
431 views
(a) If K(−3, − x) and L(3,−4) are such that KL is perpendicular to MN with M(− 5, −6) and N(−3,− 5), find the
1 answer
447 views
(a) A circle has centre at (−2,−1). One point on its circumference is (−2, −3). Find its radius, correct to 1d.p.
(b) If
1 answer
398 views
(a) Integrate wrt x:(〖2x〗^4- x^2+2)/x^2 (b) The gradient of the tangent at a point on a curve is given by x2 + 2x – 2.
1 answer
436 views
(a) Find the resultant of the following coplanar forces acting at point O: 44N in direction 54°, 77N in direction 90°, 60N in
2 answers
600 views
The position vectors of P, Q and R are 2a – b, m(a – b), and a + b respectively. (a) Find the value of m if PQR is a
1 answer
471 views
) A chord AB of length 13cm is drawn in a circle centre O at a distance of 5cm from O. Find the radius of the circle. Stop at 1
2 answers
646 views
) RSTU is a cyclic quadrilateral in a circle of centre O.If RUT is 40°, what are the two values of <ROT (convex and concave)?
(b
1 answer
497 views
The voltage of an electrochemical cell depends on the redox reaction occurring in the cell. Given a redox reaction below:
Zn(s) +
2 answers
582 views
The voltage of an electrochemical cell depends on the redox reaction occurring in the cell. Given a redox reaction below:
Zn(s) +
1 answer
503 views
Given the equation below, if 3.87×1023 particles of Sb2S3(s) are reacted with excess Fe(s), what mass of FeS(s) is produced?
Sb2
2 answers
568 views
Given the following Unknown atoms with their respective atomic numbers,
X; Atomic number 19, Y; Atomic number 15, a. Deduce the
2 answers
596 views
Given the equation below, if 3.87×1023 particles of Sb2S3(s) are reacted with excess Fe(s), what mass of FeS(s) is produced?
Sb2
4 answers
1,973 views
6. Given the equation below, how many moles of each reactant were there if 13.7 moles of N2(g) is produced?
4NH3(g) +
4 answers
1,691 views
3. For the reaction between Cu and Sn the potentials are given below;
Cu2+(aq) +2e- -----------> Cu(s) Eºcathode = 0.34
2 answers
745 views
3. For the reaction between Cu and Sn the potentials are given below;
Cu2+(aq) +2e- -----------> Cu(s) Eºcathode = 0.34
1 answer
479 views
2. The voltage of an electrochemical cell depends on the redox reaction occurring in the cell. Given a redox reaction below:
Zn(s
1 answer
713 views
1. Given that 50 grams of ice is heated at -20.0 °C to steam at 135.0 °C.
i. Show the graph of the changes from ice to steam
4 answers
4,605 views
1. Given that 50 grams of ice is heated at -20.0 °C to steam at 135.0 °C.
i. Show the graph of the changes from ice to steam
1 answer
937 views
What volume of 0.010M silver nitrate will exactly react with 20ml of 0.0080M socium chloride solution?
4 answers
494 views
a sample of compound C,H,N and O with a mass of 0.6216 was found to contain 0.1735g C,0.01455g H,0.2024g N.Its molecular mass
3 answers
1,431 views
an iron supplement is used to treat anaemia and 50mg of iron 2 is required per tablet.if the iron compound used in the tablet is
2 answers
575 views
Answers (2)
i nee help
thank you