Chemistry291

  Which plant takes up  carbon dioxide at night to make an  intermediate for photosynthesis? Answer: Desert plant takes up carbon dioxide at night to make an intermediate for photosynthesis. Next

  What is the balanced chemical equation for the process of photosynthesis? Answer: 6 CO₂ +  6 H₂O --> C₆H₁₂O₆ + 6 O₂  is the balanced chemical equation for the process of photosynthesis . Explanation: 6 CO₂ +  6 H₂O    ------>        C₆H₁₂O₆ + 6 O₂ Reactants                   Products C-->6.                            C-->6 O--->12+6=18           O--->6+12 =18 H--->12.                    H--->12 Since the number of C atoms ,O atoms and hydrogen atoms is equal from both sides of the equation ,we can say that 6 CO₂ +  6 H₂O --> C₆H₁₂O₆ + 6 O₂  is the balanced chemical equation for the process of  photosynthesis. Here is a video that will help you to balance the photosynthesis reaction. Next

  What is the balanced equation for photosynthesis? Answer: 6 CO₂ +  6 H₂O --> C₆H₁₂O₆ + 6 O₂   is the balanced equation for photosynthesis. Explanation: 6 CO₂ +  6 H₂O --> C₆H₁₂O₆ + 6 O₂ Reactants                   Products C-->6.                            C-->6 O--->12+6=18.       O--->6+12 =18 H--->12.                    H--->12 Since the number of C atoms ,O atoms and hydrogen atoms is equal from both sides of the equation ,we can say that 6 CO₂ +  6 H₂O --> C₆H₁₂O₆ + 6 O₂  is the balanced equation for photosynthesis. Here is a video that will help you to balance the photosynthesis reaction. Next

  What is the chemical name of vinegar? Answer: Acetic acid or ethanoic acid is the chemical name of vinegar. Next

  What is the chemical formula for salt? Answer: NaCl (table salt) is the chemical formula for salt. Next

 What is the formula for acetic acid? Answer: CH₃COOH is the formula for acetic acid. Next

  What is the formula of ammonium chloride? Answer: NH₄Cl is the formula of ammonium chloride. Next

  What is the formula for sodium sulfate? Answer: Na₂SO₄ is the formula for sodium sulfate. Next

 What is the formula of sodium bicarbonate? Answer NaHCO3 is the formula of sodium bicarbonate . Next

 What is the chemical formula of sodium chloride? Answer: NaCl is the chemical formula of sodium chloride . Next

 What is the formula for calcium chloride? Answer: CaCl₂ is the formula for calcium chloride. Next

  What is the chemical formula of aluminium chloride? Answer: AlCl₃ is the chemical formula of aluminium chloride. Next

  What is the formula of hydrochloric acid? Answer: HCl is the formula of hydrochloric acid. Next

 What is the formula of aluminium sulphate? Answer: Al₂(SO₄)₃ is the formula of aluminium sulphate . Next

 What is the formula of sodium carbonate? Answer : Na₂CO₃ is the formula of sodium carbonate. Next

  What is the formula of sodium hydroxide? Answer : NaOH is the formula of sodium hydroxide. Next

  What is the chemical name of rust? Answer:  Iron oxide or iron(iii) oxide or ferric oxide is the chemical name of rust.The formula for rust is given below: Fe₂O₃ Next

  What is the chemical formula of rust? Answer: Fe₂O₃ is the chemical formula of rust.You can write the general formula for rust is  Fe₂O₃  .H₂O Next

 What is the primary pigment found in the chloroplast? Answer: Chlorophyll  is the primary pigment found in the chloroplast. Next

  In what organelle do plants convert carbon dioxide and water to sugar? Answer: Plants convert carbon dioxide and water to suger in chloroplast.

  Which type of energy do living things use to make sugar using carbon dioxide? Answer: Light energy is ussd by  living things  to make sugar using carbon dioxide. Next

  What type of energy is sugar produced by plants? Answer: Sugar produced by plants is chemical energy. Next

 What type of energy does the plant use to convert co2 and h2o into sugar? Answer: Plants use sunlight energy (light energy)  to convert CO2 and H2O into sugar . Next

  What are the 3 things that are used to make glucose in photosynthesis? Answer: Water ,carbon dioxide ,and sunlight are the  the 3 things that are used to make glucose in photosynthesis.

  What three things are used to make glucose in photosynthesis? Answer:  Water,carbon dioxide, and sunlight are used to make glucose in photosynthesis. Next

  What is the chemical formula for glucose? Answer: C₆H₁₂O₆ is the chemical formula for glucose. Next

  What is the chemical formula for ammonia? Answer: NH3 is the chemical formula for ammonia. Next

  What is the chemical name of dry ice? Answer: Carbon dioxide is the chemical name of dry ice. Remember that solid carbon dioxide is called dry ice. Next

CaCl₂  is the  formula for calcium chloride. Next

What is the  formula of sodium bicarbonate? Answer: NaHCO₃ is the  formula of sodium bicarbonate. Next

  What is the chemical formula for  water? Answer: H₂O  is the chemical formula for  water. Next

  What is the chemical formula for  carbon dioxide? Answer: CO₂  is the chemical formula for  carbon dioxide. Next

  What is the chemical name of baking  soda? Answer: Sodium bicarbonate  is the chemical name of baking  soda.The IUPAC name for s odium bicarbonate is sodium hydrogen carbonate. Here is the formula for sodium bicarbonate or sodium hydrogen carbonate: NaHCO₃ Next

  What is the chemical formula for sodium iodide? Answer: NaI is the chemical formula for sodium iodide . Next

  What is the chemical formula for sodium bromide? Answer: NaBr is the chemical formula for sodium bromide . Next

      What is the chemical formula for sodium chloride? Answer: NaCl is the chemical formula for sodium chloride . Next

     What is the chemical formula for sodium hydroxide? Answer: NaOH is the chemical formula for sodium hydroxide . Next

   What is the chemical formula for hydrofluoric acid? Answer: HF is the chemical formula for hydrofluoric acid . Next

  What is the chemical formula for hydrochloric acid? Answer: HCl is the chemical formula for hydchloric acid . Next

  What is the chemical formula for hydroiodic acid? Answer: HI is the chemical formula for hydroiodic acid . Next

  What is the chemical formula for hydrobromic acid? Answer: HBr is the chemical formula for hydrobromic acid. Next

  What is the chemical formula of sulfuric acid? Answer: H₂SO₄ is the chemical formula of sulfuric acid. Next

  Balance the given chemical reaction and name the type of reaction NaoH+ H2SO4 →Na2SO4+ H2O Answer:Balanced chemical reaction is 2NaOH+ H2SO4 →Na2SO4+ 2H2O and  the type of the reaction, NaoH+ H2SO4 →Na2SO4+ H2O, is a double displacement reaction. H₂SO₄ + 2NaOH--> Na₂SO₄ +2 H₂O Reactants           Products H--> 4                      H-->4 SO₄  --> 1                SO₄  --> 1  Na-->2                       Na-->2 The number of hydrogen,sulphate,and sodium is equal from both sides.So  H₂SO₄ + 2NaOH--> Na₂SO₄ +2 H₂O is  the  balanced equation for sodium hydroxide + sulfuric acid --- > sodium sulphate + water Here is a video that will help you to understand how to balance  H2SO4 + NaOH--> Na2SO4 + H2O. Next

Is  2NaOH+ H2SO4 --> Na2SO4 + H2O balanced? Answer: No,  2NaOH + H2SO4 --> Na2SO4 + H2O is not balanced.To balance ,you need place coefficient 2 before H2O. Here is the balanced equation: H₂SO₄ + 2NaOH--> Na₂SO₄ +2 H₂O Reactants           Products H--> 4                      H-->4 SO₄  --> 1                SO₄  --> 1  Na-->2                       Na-->2 The number of hydrogen,sulphate,and sodium is equal from both sides.So  H₂SO₄ + 2NaOH--> Na₂SO₄ +2 H₂O is  the  balanced equation for sodium hydroxide and sulfuric acid --- > sodium sulphate + water Here is a video that will help you to understand how to balance  H2SO4 + NaOH--> Na2SO4 + H2O.

  Sodium hydroxide+ sulphuric acid --> sodium sulphate+ water balanced equation Answer: Sodium hydroxide sulphuric acid --> sodium sulphate + water balanced equation is H₂SO₄ + 2NaOH--> Na₂SO₄ +2 H₂O Reactants           Products H--> 4                      H-->4 SO₄  --> 1                SO₄  --> 1  Na-->2                       Na-->2 The number of hydrogen,sulphate,and sodium is equal from both sides.So  H₂SO₄ + 2NaOH--> Na₂SO₄ +2 H₂O is  the  balanced equation for sodium hydroxide and sulfuric acid ---> sodium sulphate + water Here is a video that will help you to understand how to balance  H2SO4 + NaOH--> Na2SO4 + H2O.

What is the balanced equation for H2SO4 + NaOH--> Na2SO4 + H2O ? Answer: T he balanced equation for sodium hydroxide and sulfuric acid (  H2SO4 + NaOH--> Na2SO4 + H2O ) is given below: H₂SO₄ + 2NaOH--> Na₂SO₄ +2 H₂O Reactants           Products H--> 4                      H-->4 SO₄  --> 1                SO₄  --> 1  Na-->2                       Na-->2 The number of hydrogen,sulphate,and sodium is equal from both sides.So  H₂SO₄ + 2NaOH--> Na₂SO₄ +2 H₂O is  the  balanced equation for sodium hydroxide and sulfuric acid. Here is a video that will help you to understand how to balance  H2SO4 + NaOH--> Na2SO4 + H2O. Next

  S odium hydroxide + Sulfuric acid  ---->  Sodium sulfate     +    Water   Answer: Sodium hydroxide + Sulfuric acid --> Sodium sulfate + Water is the word equation for the reaction between sodium hydroxide and sulfuric acid. Here is the chemical equation for the given word equation: H₂SO₄ + 2NaOH ---> Na₂SO₄ + 2H₂O Next

  What happens when sodium hydroxide reacts with sulphuric acid? Answers: when sodium hydroxide reacts with Sulphuric acid,sodium sulphate and water are formed. Here is the word equation: Sodom hydroxide +Sulphuric acid --->Sodium sulphate      +  Water Here is the chemical equation  for the reaction of   sodium hydroxide and sulphuric acid. 2NaOH +H₂SO₄ --->Na₂SO₄ +2H₂O Next

  What are the products of the complete combustion of CH4 ? Answer:Carbon dioxide and water are the products of the complete combustion of CH4 . Complete combustion reaction of CH4 is CH4(g) + O2(g) -----> CO2(g)  +H2O(l)  What are the products of the complete combustion reaction of methane CH4 with oxygen? Answer: Carbon dioxide and water are the product of the complete combustion reaction of methane CH4 with oxygen. Here is a video that will help you understand how to balance the equation for the complete combustion of CH4.

Complete and balance the equations for the following combustion reactions CH4 + O2 Answer: Complete combustion reaction is CH4 + O2 -----> CO2  +H2O +Energy Balanced  equation for the following combustion reactions CH4 + O2 is CH4 + 2O2 -----> CO2  +2H2O  Explanation: CH₄ (g) + 2 O₂(g) ---> CO₂(g)  + 2 H₂O(l)  Reactants                         Products C -->1                             C --->1 O --->4                           O -->4 H --->4                           H -->4 Coefficient 2 before oxygen molecule and coefficient 2 before water molecule has  balanced the equation for the complete combustion of methane. Here is a video that will help you understand how to balance the equation for the complete combustion of methane. Next

  What coefficients are needed to balance the equation for the complete combustion of methane? Answer: Coefficient 2 before oxygen molecule and coefficient 2 before water molecule are needed to balance the equation for the complete combustion of methane. CH₄ (g) + 2 O₂(g) ---> CO₂(g)  + 2 H₂O(l)  Explanation: CH₄ (g) + 2 O₂(g) ---> CO₂(g)  + 2 H₂O(l)  Reactants                         Products C -->1                             C --->1 O --->4                           O -->4 H --->4                           H -->4 Coefficient 2 before oxygen molecule and coefficient 2 before water molecule has  balanced the equation for the complete combustion of methane. Here is a video that will help you understand how to balance the equation for the complete combustion of methane. Next

  What is the balanced chemical reaction for the burning of methane? Answer: CH₄ (g) + 2 O₂(g) ---> CO₂(g)  + 2 H₂O(l)    is  the balanced chemical reaction for the burning of methane. Explanation: CH₄ (g) + 2 O₂(g) ---> CO₂(g)  + 2 H₂O(l)  Reactants                         Products C -->1                             C --->1 O --->4                           O -->4 H --->4                           H -->4 The number of carbon atom,oxygen atom ,and hydrogen atom is equal from both sides of   this equation, CH₄ (g) + 2 O₂(g) ---> CO₂(g)  + 2 H₂O(l). Here is a video that will help you understand to balance chemical reaction for burning of methane. Next

  When methane burns ,it reacts with oxygen one of the products is water. What is the other product? Answer:When methane burns completely ,it reacts with oxygen. One of the products is water  and  the other product is carbon dioxide .  Here is the chemical equation: CH₄ (g) + O₂(g) ---> CO₂(g)  + H₂O(l) + Heat Next

Chlorine has the electron configuration 1s22s22p63s23p5. How many valence electrons does it have? Answer: Chlorine has the electron configuration 1s22s22p6 3s23p5. So,i t has seven (2 +5 =7)  valence electrons. Explanation: Chlorine has the electron configuration 1s22s22p6 3s23p5. So the outermost shell or valence shell is  3s23p5. Now count the number of valence electrons present here.It has seven (2 +5 =7) valence electrons. Next

  Is the reaction of sulfuric acid with sodium hydroxide exothermic or endothermic ? Answer: The  reaction of sulfuric acid with sodium hydroxide is exothermic.In this reaction,heat is released.The sign of ∆H is negative for t he  reaction of sulfuric acid with sodium hydroxide . Next

  What is the expected pH of a strong acid/ strong base neutralization reaction? Answer: Seven is the expected pH of a strong acid/ strong base neutralization reaction. pH =7  indicates that the solution is neither acidic nor basic.pH =7  indicates that the solution is neutral. What is the pH of solution when strong acid and strong base react ? Answer: The pH of solution when strong acid and strong base react is 7. Next

  What products would you expect from the reaction of sulfuric acid and sodium hydroxide? Answer:We can expect two products from the reaction of  sulfuric acid and sodium hydroxide.The two products are sodium sulphate and water. Explanation: The reaction that happens between an acid and a base is called neutralization reaction.The products of a  neutralization reaction are salt and water. Here sulfuric acid is an acid and sodium hydroxide is a base.So,acid base neutralization reaction will happen and we will get salt and water. H₂SO₄ +2NaOH --->Na₂SO₄ + 2 H₂O Na₂SO₄ is a salt . Next

  What is the reaction to describe the neutralization of sulfuric acid and sodium hydroxide? Answer:  H2SO4 + 2NaOH --->Na2SO4 + 2H2O is the reaction to describe the neutralization of  sulfuric acid and sodium hydroxide. Explanation: Sulfuric acid is an acid , and sodium hydroxide is a base.So acid-base neutralization reaction will happen and we will get salt and water. H₂SO₄ +2NaOH --->Na₂SO₄ + 2 H₂O Na₂SO₄ is a salt . Next

What element has the electron configuration 1s2 2s2 2p6 3s2 3p5 , and how many valence electrons do it has ? Answer: Chlorine element has the electron configuration 1s2 2s2 2p6 3s2 3p5 , and it has seven valence electrons. Explanation: Given electron configuration is 1s2 2s2 2p6 3s2 3p5 . Now count the number of electrons present here.Here we are getting 17 electrons (2 + 2+ 6+2+5 =17).The charge of an electron is negative and the charge of a proton is positive . For a neutral element , the number of electrons and protons is equal.So this element has 17 protons. We know that the number of protons is called atomic number.So this element's atomic number is 17.From periodic table, we can say that chlorine element has the atomic number 17.So Chlorine element has the electron configuration 1s2 2s2 2p6 3s2 3p5 . Explanation for valence electrons Given electron configuration is the electron configuration 1s2 2s2 2p6 3s2 3p5 . Now identify the outermost shell or valence shell.Here th

    How many valence electrons  does the representative  element with the electron  configuration 1s2 2s2 2p6 3s2  3p5 possess ? Answer: The representative element with the electron configuration  1s2 2s2 2p6 3s2 3p5 posse ss seven valence electrons. Explanation: Given electron configuration is  the electron configuration  1s2 2s2 2p6 3s2 3p5 . Now identify the outermost shell or valence shell.Here  the outermost shell or valence shell is 3 s 2  3p 5  . After that, count the number of electrons present in  the outermost shell or valence shell  . Here we are getting seven electrons ( 2+5  = 7 ).So,  The representative element with the electron configuration  1s2 2s2 2p6 3s2 3p5 posse ss seven valence electrons.. Next  

  How many valance electrons does an element with the electron configuration 1s2 2s2 2p5 have? Answer: A n element with the electron configuration 1s2 2s2 2p5 has seven valence electrons. Explanation: Given electron configuration is  the electron configuration 1s2 2s2 2p5. Now identify the outermost shell or valence shell.Here  the outermost shell or valence shell is  2s 2 2p 5 . After that, count the number of electrons present in  the outermost shell or valence shell  . Here we are getting seven electrons ( 2+5 = 7 ).So, a n element with the electron configuration 1s2 2s2 2p5 has seven valence electrons. Next  

  The electron configuration of nitrogen is 1s2 2s2 2p3 . How many electrons are in a nitrogen atom? Answer: The electron configuration of nitrogen is 1s ²  2s ²  2p ³  . From this electron configuration ,we can say that  there are seven electrons ( 2 + 2 + 3 =7 ) in a nitrogen atom. Next