Answers edited by Chirag Mehta

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• What happens to hydrogen atoms at very high temperatures?
  
• How many electrons can the second shell hold?
  
• A store owner bought a painting for $120. She is selling it for $190. What is the percent markup on the painting?
  
• If light is a form of energy, why should it get attracted by the immense gravitational force exerted by a black hole?
  
• What is the #"pH"# for an aqueous solution with a hydroxide concentration of #5 xx 10^(-3) "M"# at #25^@ "C"#?
  
• Question #aaac1
  
• Question #22549
  
• Why the speed of light is constant in every reference point?Train going with a speed of 200m/sec emitting light from the front of it,then there the speed of light would be 300000200m/sec but there also the speed of light is constant (300000000m/sec)
  
• How do you add diagrams and graphs in an answer without having to convert it into a picture format and uploading it that way?
  
• Question #30dd4
  
• How many moles of #KCl# are produced from 2.50 moles of #K# and excess #Cl_2#?
  
• Question #bce7b
  
• What should be added to the polynomial so that it becomes perfect square 4X square plus 8X?
  
• What are the characteristics of an endothermic reaction?
  
• What are the most basic units of matter?
  
• Question #41144
  
• Question #3860d
  
• How do you solve #2( 9- 2y ) = 21#?
  
• How to expand (x^2−2y)^6 using the binomial theorem?
  
• How do you solve #23=\frac{5}{10}x#?
  
• Why are all hydrogen atoms not identical?
  
• How do you solve #10= 3( r + 1) + 1#?
  
• Question #d2110
  
• How do you simplify #-4( 3u ^ { 2} - 2u )#?
  
• Two corners of a triangle have angles of # (2 pi )/ 3 # and # ( pi ) / 4 #. If one side of the triangle has a length of # 15 #, what is the longest possible perimeter of the triangle?
  
• A triangle has sides A,B, and C. If the angle between sides A and B is #(pi)/3#, the angle between sides B and C is #pi/6#, and the length of B is 15, what is the area of the triangle?
  
• Question #9ab9e
  
• How to solve #cos x < |1|#?
  
• Question #b8554
  
• Question #b88bf
  
• The product of two consecutive negative integers is 600. What is the value of the lesser integer?
  
• What is the value of sin(-60°)?
  
• Question #37625
  
• What are strong acids or bases are that ionize or dissociate in aqueous solution?
  
• How do you find the exact value of #cos ((2pi)/9) cos (pi/18)+sin ((2pi)/9) sin (pi/18)#?
  
• Lily earns 1.5 her normal earns hourly rate for overtime pay Last week, Roxanna earned $72.00 in overtime pay for 4 hours. What is Roxana's normal hourly pay?
  
• How do you find the exact value of #cos ((2pi)/9) cos (pi/18)+sin ((2pi)/9) sin (pi/18)#?
  
• What is Bose-Einstein condensate state of matter?
  
• What is String Theory?
  
• Question #84c2f
  
• In the presence of an active metal, do bases usually release hydrogen gas?
  
• What's the probability of rolling a 9 or higher using two fair standard dice?
  
• What does gravity mean?
  
• How many atomic orbitals are there in an h subshell?
  
• Can someone show me steps to get the desired answer ?
  
• Question #172c4
  
• Question #b7a06
  
• Which type of solution is one with a pH 8?
  
• Can pH levels go beyond 14?
  
• What type of radiation transmits heat energy?
  
• Consider a Geometric progression #1,7,49...7^364# . find the remainder when sum of this g.p is divided by 5.?
  
• What is 75% of 120?
  
• How do you find the #x# and #y#-intercepts of #y=1 1/4x-10#?
  
• Question #9a085
  
• _+_+_=30. What numbers can be used to fill the blanks? {1,3,5,7,9,11,13,15}
  
• What is the size of the universe?
  
• Which type of solution is one with a pH 8?
  
• What are the most basic units of matter?
  
• How do you follow the system of equations #2x+y=1# and #x--2y=-7# by graphing?
  
• If #y=ab^x# what is x ?
  
• Why 4 bonds doesn't exist between carbon compounds?
  
• 3. What is the perimeter of VPQR? Show your work. Help
  
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