Noise

Popular questions and responses by Noise
  1. Science

    What is the three-dimensional structure of the nuclei of atoms in a molecule or polyatomic ion called? Lewis Dot structure bond length molecular geometry molecular formula Molecular geometry?

    asked on November 22, 2019
  2. math

    Omar wanted to know if x−5 is a factor of the polynomial p(x)=x3−6x2−x+30. He applied the Factor Theorem and concluded that x−5 is a factor of p(x), as shown in the following work. Step 1: p(5)=53−6(52)−5+30 Step 2: p(5)=125−150−5+30=0 Step

    asked on November 28, 2019
  3. Science

    PCl5 + H2O → H3PO4 + HCl What coefficients will balance the equation? 1, 4, 1, 5 1, 5, 1, 1 2, 5, 1, 2 2, 4, 2, 5 is it 1425

    asked on December 2, 2019
  4. Chemistry

    What is the three-dimensional structure of the nuclei of atoms in a molecule or polyatomic ion called? Lewis Dot structure bond length molecular geometry molecular formula Won't it be Molecular geometry

    asked on November 22, 2019
  5. chem

    NH4OH(aq) → H2O(l) + NH3(g) What coefficients will balance the equation? 1, 2, 2 3, 3, 4 2, 1, 2 1, 1, 1 is it 212

    asked on December 2, 2019
  6. Science

    Phosphate (PO4)3– is a polyatomic ion with a 3– charge. What is the chemical formula for the ionic compound lithium phosphate? Li3PO4 LiPO4 Li(PO4)3 Li2PO4 would it be Li(PO4)3?

    asked on November 28, 2019
  7. Science

    How is the law of conservation of mass used to balance a chemical equation? In a chemical equation, the products formed have the same atoms as the original reactants; however, the atoms may be rearranged. The law of conservation of mass states that the

    asked on December 2, 2019
  8. Science

    What equation correctly represents the reaction of lithium hydroxide (LiOH) with hydrogen chloride (HCl)? LiOH + HCl → LiCl + H2O LiOH + H2O → LiCl + HCl LiCl + HCl → LiOH + H2O LiCl + H2O → LiOH + HCl

    asked on December 2, 2019
  9. Science

    What is a synthesis reaction? a reaction that occurs when one element within a compound is exchanged with another element a reaction that occurs when a single substance breaks apart and forms two or more new substances a reaction that occurs when a

    asked on December 2, 2019
  10. Science

    Why do some chemical reactions occur? Select all that apply. so the particles can have less energy so the particles can turn into gas so the particles can have less volume so the particles can be more spread out

    asked on December 2, 2019
  11. Science

    What is a factor that drives chemical reactions? tendency to have less energy tendency to have less mass tendency to burn tendency to condense Tends to burn right?

    asked on December 2, 2019
  12. Science

    If Ag2O decomposes, what is the balanced equation that shows the products formed? Ag2O(s) → 2Ag(s) + O(g) 2Ag2O(s) → 4Ag(s) + 2O(g) Ag2O(s) → Ag2(s) + O(g) 2Ag2O(s) → 4Ag(s) + O2(g) would it be 2Ag2O(s) → 4Ag(s) + 2O(g)?

    asked on December 2, 2019
  13. Math

    Jamal wants to know if x−3 is a factor of the polynomial P(x)=x3−7x+6. Jamal calculates P(3) and applies the Factor Theorem to conclude that x−3 is a factor of P(x). Is he correct? Why or why not? No, because P(3) is equal to 0. No, because P(3) is

    asked on November 28, 2019
  14. Science

    What is the oxidation state of an element? the total number of protons an atom can gain or lose during a chemical reaction the total number of electrons an atom loses or gains during a chemical reaction the number of elements oxygen can bond with to form a

    asked on November 28, 2019
  15. Chemistry

    Magnesium has two valence electrons and oxygen has six valence electrons. The electronegativity difference between the two elements is 2.13. How can the octet rule be used to explain the bonding between magnesium and oxygen? Oxygen needs access to two

    asked on November 22, 2019
  16. Science

    How can the relationship between synthesis and decomposition reactions be described? Synthesis reactions happen when substances combine to make a new substance. Decomposition reactions occur when a substance breaks apart to make new substances. Thus, the

    asked on December 2, 2019
  17. Chemistry

    Magnesium has two valence electrons and oxygen has six valence electrons. The electronegativity difference between the two elements is 2.13. How can the octet rule be used to explain the bonding between magnesium and oxygen? A. Oxygen needs access to two

    asked on November 21, 2019
  18. Chemistry

    How does melting order relate to melting point? A. The substance that melted the quickest has the highest melting point. B. The substance that took the longest to melt has the highest melting point. C. The substance that melted third to last has the lowest

    asked on November 21, 2019
  1. Science

    the total number of electrons an atom loses or gains during a chemical reaction?

    posted on November 28, 2019