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Science questions and answers page 2
How to predict a formula of a compound???
I have a big trouble in predicting for example zincsulphide zn+2 s-2 But in the lattice each zinc atom is bonded to 4 sulphur atoms, so whi...Valency of a metal
Is valency of a metal the no. Of electrons in the outer shell of an element???Big Bang
What caused the big bang? How did it come out of nothing? And if there was somthing that triggered it, how did substances get there in the first p...Evolution
Then why doesnt it happen now??? Why dont humans have gills??? Or trees have feathers??? You think that we came from a rock?? Why dont we have half...Bonds-covalent,ionic,giant covalent, giant atomic, giant metallic..
..lattice, giant covalent bonds, I have a great issue in those, I actually dont know how to tell if a compound or an element is which bond, please ...Hard physics problem see if you can solve :d
A sphere with a radius of 15 cm rolls in a level surface with a constant angular speed of 10rad/s. To what height on a 30 degree inclined plane wil...Words with same meanings related to biotechnology
Words of same meaning relating to biotechnologyIf a 0.15 kg mass is suspended 75 cm from the pivoted end
If a 0.15 kg mass is suspended 75 cm from the pivoted end, what is the tension in the string?energy transformations
does anyone know about energy transformations I need to now about the energy transformations of a circuit board, a speaker I know theres electromag...Do forces have a stronger effect on the behavior of gas or liquid?
Help :pWhat makes a star glow???
I need to know asap!!! What makes a star glow different colors??? Please just help me find some info about this!!! Help please!!! Thanks :)Mole?
What is the history of the mole? Who came up with it? Why was it created? Wats the actual # for a mole? When was it created? What does it mean...Possibilty of charging an electrical device with body heat?
would if actually be technically possible to charge a mobile phone with your own body heat? I'm not a sciency type person so I wouldnt know, I just...How do you find the speed of an object without a given time
How do you find the speed of an object without a given time.the problem is "an archer fires a 30-kg arrow form a bow the archer exerts an average f...What is a ecofact
What is a ecofactPhyiscal science
what is the answer to this question Calculate Acceleration The download force of gravity and the upward force of air resistance on a ball are bot...Physical science
what is the answer to this question Calculate Net Force two students push on a box in the same direction, and one pushes in the opposite direction...Evolutionary reason for naturally skinny people?
What is the evolutionary reason why there are naturally skiny and tall people like myself like its just seems like if it were the caveman days peop...How can I find the melting point of a sudstance?
How can I find the melting point of a sudstance?What Cloud Has...?
I'm studying 3 types of clouds:stratus,cumulus,and cirrus. Could you help me with these problems (I don't have my science book and I can't find any...which chemical is deoxidised
Well in science, I have finished my homework, but I was confused about the way something was worded... ok... well here is a chemical equation: cop...How many muscles does it take to frown?
19, 47,62?How many muscles does it take to smile
How many muscles does it take to smile 17,31,57?What are two words that describe dimitri mendeleev
Famous scientistWhat are fundamental frequencys?
An organ pipe is 78.0 cm long. What are the fundamental and first three audible overtones if the pipe is a) closed at one end and b) open at both e...