Science(Chemistry)
HCL+Al=AlCl3+H2 What is the ionic equation,the spectator ions and the overall or net ionic equations?
Science(Chemistry)
Explain what would happen when bromine water is added to potassium iodide solution and what is its balanced chemical equation?
Science(Chemistry)
Mg+H2O=MgOH+H2 What is the ionic equation,the spectator ions and the overall or net ionic equations?
Science
ive got 2 questions: the star Vega is 25 lightyears away from us. if we sent a radio message to Vega, and another civilization on a planet circling that star answered us, in what year could we expect to hear a reply? why was it necessary to make radio telescopes so much bigger...
math
The probability that a voting-age adult in 2004 voted in the presidential election was 0.57. Five voting-age adults in 2004 were randomly selected. Find the probability that exactly 2 or the 5 adults voted in the presidential election.
Math
A bullet hole in the wall at height of 7'6 inches from the floor. Bullet passed thru wall at angle 34 degrees. If they assume that the gun was fired from a height 4' above the floor, how far away from the wall was it when it was fired? (nearest inch)
Math
Find the perimeter of a right triangle which has a side 7 in. long and the angle opposite to it measures 37 degrees.
Biology
What is the importance of embryo polarity during cleavage?
grammar
Which is the correct verbal usage of the following sentence? I let it there while I stood and applauded or I left it there while I stood and applauded?
Geomtry
Five fences meet at a point to form angles with measures x, 2x, 3x, 4x, and 5x around the point. Find the measure of each angle.
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