Exams & Certification

Silver carbonate, Ag2CO3, has a solubility product constant of 8.46 x 10-12 at 25 °C. (a) A sample of solid silver carbonate is added to pure water. Calculate the molar solubility (mol/L) and gram solubility (g Ag2CO3/100 mL H20) of silver carbonate in water and determine [Agt) and (CO3). (b) Suppose 100.0 mL of 0.100 […]

Three forces act on a particle that moves with unchanging velocity v = (2 m/s)i – (7 m/s)i. Two of the forces are F1 = (2 N)i + (3 N)j + (– 2N)k and F2 = (– 5N)i + (8 N)j + (– 2 N)k. What is the third force? The Correct Answer and Explanation

Both DNA and RNA are made up of building blocks known as A. amino acids B. nucleotides C. complementary base pairs D. genes The Correct Answer and Explanation is : The correct answer is B. nucleotides. Both DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) are composed of smaller units known as nucleotides. A nucleotide is

A) What type of macromolecule are enzymes (lipids, proteins, carbohydrates, or nucleic acids)? Explain why this makes enzymes so sensitive to changes in temperature. B) Enzymes can speed up chemical reactions, but how do they do it? Describe three ways that enzymes can speed up chemical reactions through lowering the activation energy. The Correct Answer

CHM 151: HW 7 1. NH O2 NO H₂O 2. Al+ Cr2O3 Al2O3+ Cr 3. Ca3(PO4)2 + H2SO4 CaSO+ H3PO4 4. C7H14+ O2 CO2 + H2O 5. P4O10+ H₂O H3PO4 6. NaCl + H2SO4 HCI Na2SO4 7. Al+ H2SO4 Al2(SO4)3 H 8. Consider the reaction below. How many moles of FeS: will react with 12.2

Acrocanthosaurus what is physical description compare to tyrannosaur rex differences of shape, size and appearance? Acrocanthosaurus what dinosaurs did it lived in time of North America it’s in early Cretouces but what Carnivores and herbivores and what type of biome did they live in was it woodland, wetland, desert, mountains or something? The Correct Answer

The Joule (J) Is The SI Unit Of Energy. 1 Calorie (Cal) = 4.184 J J Cal KJ 558 109 0.492 The Joule (J) Is The SI Unit Of Energy. 1 Calorie (Cal) = 4.184 J; 1 Kcal = 1000 Cal J KJ Kcal 507 Egress 0.739 0.200 A List Of The Calorie Content Of

F = A’B’C’ + A’BC’ + ABC’ truth table kmap The Correct Answer and Explanation is : To find the simplified Boolean expression for the given equation ( F = A’B’C’ + A’BC’ + ABC’ ), we can follow these steps: 1. Construct the Truth Table We first construct a truth table to evaluate the

draw the circuit diagram of ac+ab+abc’ and also determine its truth table determine the truth table of the circuit The Correct Answer and Explanation is : To determine the truth table of the circuit and provide an explanation, we first need to break down the logical expression represented by the circuit diagram you linked. I

What type of relationship exists between price and quantity demanded on a demand curve? A. Positive relationship B. No relationship C. Inverse relationship D. Variable relationship E. Fixed relationship The Correct Answer and Explanation is : The correct answer is C. Inverse relationship. Explanation: On a demand curve, there is an inverse (or negative) relationship