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November 2025

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Recent questions

Latest from November 2025

Use the information in the table to answer the question. Bond Between Atoms and Their Respective Electronegativity Bond Bond Energy ( kJ/mol kJ / mol ) H–Cl H–Cl 427 427 Cl–Cl Cl–Cl 242 242 H–H H–H 435 435 Hydrogen and c...
Asked by lil darkie 1 answer
Use the information in the table to answer the question. Bond Between Atoms and Their Respective Electronegativity Bond Bond Energy ( kJ/mol kJ / mol ) H-I H-I 297 297 H-H H-H 435 435 I-I I-I 151 151 Hydrogen and iodine...
Asked by lil darkie 1 answer
Which fact must be true if a relationship is endothermic?(1 point) Responses The energy of each bond on the reactant side is greater than the energy of each bond on the product side. The energy of each bond on the reacta...
Asked by lil darkie 1 answer
Which statement explains the relationship between the amount of energy it takes to break a bond and the amount of energy released when the same bond is formed?(1 point) Responses The amounts of energy are always equal. T...
Asked by lil darkie 1 answer
Hydrogen bromide breaks down into diatomic hydrogen and bromine in the reaction shown. 2HBr → H2 + Br2 The energy of the reactant is 732 kJ/mol, and the energy of the products is 630 kJ/mol. What is the total energy of t...
Asked by lil darkie 1 answer
When producing hydrogen iodide, the energy of the reactants is 581 kJ/mol, and the energy of the products is 590 kJ/mol. The equation is shown. H2 + I2 → 2HI2H1 What is the total energy of the reaction? Is this an endoth...
Asked by lil darkie 1 answer
How is total reaction energy calculated?(1 point) Responses reactant bond energy + product bond energy reactant bond energy + product bond energy product bond energy × reactant bond energy product bond energy × reactant...
Asked by lil darkie 1 answer
Which result occurs during an exothermic reaction?(1 point) Responses Light and heat are absorbed from the environment. Light and heat are absorbed from the environment. Heat is released into the environment, while light...
Asked by lil darkie 1 answer
In a chemical reaction, substance A transfers electrons to substance B. Which statement is correct?(1 point) Responses Substance A is reduced and acts as the reducing agent. Substance A is reduced and acts as the reducin...
Asked by lil darkie 1 answer
In the decomposition of water, why is twice as much hydrogen as oxygen formed?(1 point) Responses Hydrogen gas has two atoms, and oxygen gas has one atom. Hydrogen gas has two atoms, and oxygen gas has one atom. Hydrogen...
Asked by lil darkie 1 answer
In a synthesis reaction, two atoms of sodium (Na) combine with one molecule of chlorine gas (Cl2) to produce sodium chloride (NaCl). How many molecules of sodium chloride are produced?(1 point) Responses four four one on...
Asked by lil darkie 1 answer
Question Which statement correctly describes the classification of chemical reactions into different categories?(1 point) Responses All reactions fit into only one category. All reactions fit into only one category. All...
Asked by lil darkie 1 answer
Use the table to answer the question. Elements with Their Electronegativity Element Electronegativity bromine 2.8 oxygen 3.5 nitrogen 3.0 phosphorus 2.1 Based on the information in the table, which pair of elements would...
Asked by lil darkie 1 answer
Which phrase best describes electronegativity?(1 point) Responses the partial charge an element carries in a covalent or ionic bond the partial charge an element carries in a covalent or ionic bond the number of electron...
Asked by lil darkie 1 answer
Based on their locations in the periodic table, which two elements are most likely to form covalent bonds with each other? (1 point) Responses sodium (Na) and bromine (Br) sodium (Na) and bromine (Br) potassium (K) and i...
Asked by lil darkie 1 answer
Which statement about sodium chloride is correct?(1 point) Responses The sodium atom transfers electrons to the chlorine atoms to form covalent bonds. The sodium atom transfers electrons to the chlorine atoms to form cov...
Asked by lil darkie 1 answer
Which of the following equations demonstrates the Law of Conservation of Mass? (1 point) Responses CH+O2→CO2+H2O 𝐶 𝐻 + 𝑂 2 → 𝐶 𝑂 2 + 𝐻 2 𝑂 cap c cap h plus cap o sub 2 right arrow cap c cap o sub 2 plus 2 cap h sub 2 cap...
Asked by lil darkie 1 answer
What does the Law of Conservation of Mass state?(1 point) Response The total mass of all of the reactants prior to a chemical reaction must equal the total mass of all the products after the reaction. The total mass of a...
Asked by lil darkie 1 answer
Solve for v. v–10≤ – 3
Asked by A 1 answer
oth anorexia and bulimia can be treated by _________________Answer Line. (1 point) Responses specific medications targeting eating disorders specific medications targeting eating disorders psychological therapy psycholog...
Asked by lil darkie 1 answer
Which eating disorder might be discovered by a dentist? (1 point) Responses anorexia anorexia bulimia bulimia starvation dieting starvation dieting obesity obesity
Asked by lil darkie 1 answer
Bulimia can be difficult to discover because most sufferers hide their condition and they tend to be (1 point) Responses a normal weight, sometimes overweight. a normal weight, sometimes overweight. severely underweight....
Asked by lil darkie 1 answer
Anorexia is considered a ____________Answer Line disorder because it is frequently caused by low self-esteem, poor body image, depression, feelings of inadequacy, perfectionism, physical or sexual abuse, the need to be i...
Asked by lil darkie 1 answer
Individuals suffering from anorexia suffer extreme weight loss, usually ______Answer Line below the person's normal body weight. (1 point) Responses 5% 5% 8% 8% 10% 10% 15% 15%
Asked by lil darkie 1 answer
Anorexia is a type of eating disorder that usually begins in young people (1 point) Responses with obese parents. with obese parents. around the onset of puberty. around the onset of puberty. around the time they graduat...
Asked by lil darkie 1 answer