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Noise

Questions and answers by Noise

Questions (18)

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
1. 4 answers
2. 1,759 views
How does melting order relate to melting point?A. The substance that melted the quickest has the highest melting point. B. The
1. 4 answers
2. 2,005 views
Magnesium has two valence electrons and oxygen has six valence electrons. The electronegativity difference between the two
1. 2 answers
2. 768 views
What is the three-dimensional structure of the nuclei of atoms in a molecule or polyatomic ion called?Lewis Dot structure bond
1. 4 answers
2. 2,450 views
What is the three-dimensional structure of the nuclei of atoms in a molecule or polyatomic ion called?Lewis Dot structure bond
1. 4 answers
2. 1,513 views
Magnesium has two valence electrons and oxygen has six valence electrons. The electronegativity difference between the two
1. 4 answers
2. 1,594 views
What is the oxidation state of an element?the total number of protons an atom can gain or lose during a chemical reaction the
1. 3 answers
2. 798 views
Phosphate (PO4)3– is a polyatomic ion with a 3– charge.What is the chemical formula for the ionic compound lithium
1. 5 answers
2. 2,881 views
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
1. 2 answers
2. 651 views
How can the relationship between synthesis and decomposition reactions be described?Synthesis reactions happen when substances
1. 2 answers
2. 723 views
If Ag2O decomposes, what is the balanced equation that shows the products formed?Ag2O(s) → 2Ag(s) + O(g) 2Ag2O(s) → 4Ag(s) +
1. 4 answers
2. 1,473 views
What is a synthesis reaction?a reaction that occurs when one element within a compound is exchanged with another element a
1. 2 answers
2. 593 views
What is a factor that drives chemical reactions?tendency to have less energy tendency to have less mass tendency to burn
1. 5 answers
2. 1,487 views
Why do some chemical reactions occur?Select all that apply. so the particles can have less energy so the particles can turn into
1. 2 answers
2. 762 views
What equation correctly represents the reaction of lithium hydroxide (LiOH) with hydrogen chloride (HCl)?LiOH + HCl → LiCl +
1. 4 answers
2. 1,447 views
How is the law of conservation of mass used to balance a chemical equation?In a chemical equation, the products formed have the
1. 4 answers
2. 1,314 views
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
1. 6 answers
2. 2,548 views
PCl5 + H2O → H3PO4 + HClWhat coefficients will balance the equation? 1, 4, 1, 5 1, 5, 1, 1 2, 5, 1, 2 2, 4, 2, 5 is it 1425
1. 4 answers
2. 2,270 views