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Taaju
Questions (68)
Write the common name of alkane and give example
1 answer
25 views
Draw the structure 2,2,3,4 -tetramethylpentane
1 answer
23 views
2,2,3,4 -tetramethylpentane
1 answer
24 views
Write the similarity and difference between electric field lines and magnetic field lines
1 answer
39 views
List at least three source of magnetic field
1 answer
26 views
29. Among the following molecules which one cannot exist as a molecule?
A. He2 B. C2 C. B2 D. CN-
1 answer
25 views
21. Which of the following statements concerning the length of carbon –carbon single, double
& Triple bond is true? A. Carbon -
1 answer
38 views
Coordinate covalent bond
1 answer
32 views
Single civalent bond
1 answer
27 views
Double covalent bond
1 answer
35 views
9. "Two atoms each provide two electrons that are shared by the two atoms" This is a description of a
A. Triple covalent bond C.
1 answer
61 views
The central atom in XeF4 is surrounded by
A. 3 single bonds, 1 double bond, and no lone pairs of electrons. B. 3 single bonds, 1
1 answer
72 views
GENERAL DIRECTIONS: CHOOSE THE BEST ANSWER FROM THE SUGGESTED OPTIONS AND WRITE THE LETTER OF YOUR CHOICE ON THE ANSWER SHEET.
1.
1 answer
72 views
GENERAL DIRECTIONS: CHOOSE THE BEST ANSWER FROM THE SUGGESTED OPTIONS AND WRITE THE LETTER OF YOUR CHOICE ON THE ANSWER SHEET.
1.
1 answer
65 views
HARAR HEALTH SCIENCE COLLAGE, 2016E.C
CHEMISTRY CYCLE TEST FOR REMEDIAL STUDENTS Atomic number (z) and Atomic mass (A) Elements H
1 answer
32 views
2. Which one of the following pair of molecules or species is not isoelectronic pair?
A. CO and N2 B. NH3 and H3O+ C. N2 and CN-
1 answer
35 views
2. Which one of the following pair of molecules or species is not isoelectronic pair?
A. CO and N2 B. NH3 and H3O+ C. N2 and CN-
1 answer
34 views
1. Which of the following is different from others?
Covalent bonding C. Metallic bonding B. Ionic bonding D. Hydrogen bonding 2.
1 answer
60 views
Draw the electric field lines for
A)Two negative charge B)two unlike charge
1 answer
28 views
Two negative charge
1 answer
33 views
How many moles in 270g of water
1 answer
37 views
6. How many moles of CaO are needed to react with excess water to produce 370 g of calcium bydroxide?
1 answer
44 views
2 How many litres of sulphurdioxide are formed when 4800 cm³ of sulphur
dioxide is burned in air?
1 answer
39 views
Equations word No
1 answer
30 views
NO word
1 answer
29 views
NO + S + H2O
1 answer
36 views
Meaning of CaO
1 answer
23 views
Cao
1 answer
27 views
H2S
1 answer
39 views
NHO3
1 answer
32 views
AlPO4
1 answer
30 views
H3PO4
1 answer
33 views
H2O2
1 answer
27 views
2. Balance the following equations by the LCM method.
a PCl5+ H20→ H3PO4 + HCl
1 answer
46 views
Give explain about types of hyberdization using examples type of hyberdization
1 answer
38 views
33. What mass of helium in grams is required to fill 15.0 L balloon to a pressure of1.1 atm at 25°C?
1 answer
41 views
What is solutions
1 answer
40 views
The rate of diffusion of CO2 is 1.75 times that of an unknown gas what is the molecular mass of the unknown gas
1 answer
47 views
Which diffusion is faster out of cars type of oxygen or nitrogen ? How much faster
1 answer
39 views
1. My son be home by now. Where can he be?
a have to b. would c. should d. could
1 answer
38 views
4. Eating is forbidden in class!
You
1 answer
36 views
Modals are auxiliary or helping verbs
a) will b) shall c) may d) would e) can f) could g) must h) oughto i) should
1 answer
68 views
7) If Brian
(to like) horses, he could ride well.
1 answer
43 views
4) John's mother
(to have) more time for him if he does the washingu
1 answer
49 views
2) If you were older, you
(to go) to the party.
1 answer
43 views
1) If the weather had been better, we
(to come) by bike.
1 answer
48 views
19. What is the solution set of the system
X-2y =10 2x + 3y =8
1 answer
31 views
Difference between angular and circular
1 answer
31 views
17. Solve 3x² - V3x =8
1 answer
35 views
17. Solve 3x² – 3x⁰•⁵ =8
1 answer
44 views
17. Solve 3x² – 3x½ =8
1 answer
30 views
15. If M and N are real roots of 4x²- 4x = 3, then compute the numerical value of M² + N²?
1 answer
26 views
12. What are the values of A, B.C.respectively so that
x-1 / x³+x = A / x + Bx + C / x²+1 ?
1 answer
28 views
12. What are the values of A, B.C.respectively so that
x-1 / x³+x = A / x + Bx + C / x²+1
3 answers
31 views
12. What are the values of A, B.C.respectively so that
x-1/x³+x=A/x +Bx+C/x²+1
1 answer
33 views
12. What are the values of A, B.C.respectively so that-
x-1/x³+x=A/x +Bx+C/x²+1
1 answer
32 views
10. If f(x) =X-1/(x+1)(x-2)²Which is true about f?
1 answer
32 views
6. If 3(log2 a+log2 3)=1/9. then a is equal to:-
1 answer
32 views
4. If the solution of 2x² + (k- 3) x - 7 = 0are 3.5 and -1,then what is the value of k?
1 answer
26 views
4. If the solution of 2x² + (k- 3)x-7 = 0are 3.5 and -1,then what is the value of k?
1 answer
34 views
Differnce between angular and circular motion
1 answer
33 views
14. A boy is riding a bicycle at a velocity of 4 m/s. The bicycle's wheel's have a diameter of 0.8m and 40 revolutions.
c) what
1 answer
79 views
14. A boy is riding a bicycle at a velocity of 4 m/s. The bicycle's wheel's have a diameter of 0.8m and 40 revolutions.
b)
1 answer
68 views
14. A boy is riding a bicycle at a velocity of 4 m/s. The bicycle's wheel's have a diameter of 0.8m and 40 revolutions.
a) what
1 answer
65 views
14. A boy is riding a bicycle at a velocity of 4 m/s. The bicycle's wheel's have a diameter of 0.8m and 40 revolutions.
a) what
1 answer
60 views
2. If A = 8i- 8j. B = -i +6j and C = -25. Find the constants a and b such that aA+ bB + C = 0.
1 answer
27 views
2. If Ā= 8i- 8j. B = -i +6j and č= -25. Find the constants a and b such that aÃ+ bB + Č = 0.
1 answer
37 views
15. A wheel rotates witha constant angular acceleration of 3.5 rad/s². (a) If the angular speed of the wheel is 2 rad/s at t=
1 answer
78 views
