Exams & Certification
what is 3 billion divided by 24 simplified The Correct Answer and Explanation is: To divide 3 billion by 24, follow these steps: So, 3 billion divided by 24 simplifies to 125 million. Explanation: When dividing large numbers, it’s often useful to simplify them first. Here, we divided both 3 billion and 24 by their […]
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The crankshaft in your car’s engine rotates at a rate of 2,400 revolutions per minute (RPMs). What is the angular velocity of the crankshaft in SI units of rad/s? The Correct Answer and Explanation is: To find the angular velocity of the crankshaft in SI units of rad/s, we need to convert from revolutions per
7 over 12 minus 5 over 12 as a fraction in simplest form The Correct Answer and Explanation is: To solve 712−512\frac{7}{12} – \frac{5}{12}127−125, you are subtracting two fractions that already have the same denominator. Step-by-step process: Final answer: So, 712−512=16\frac{7}{12} – \frac{5}{12} = \frac{1}{6}127−125=61. Explanation: The key idea when subtracting fractions with the same
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What is the the simplest form of 11/12 +[-7/12 The Correct Answer and Explanation is: The expression is: 1112+(−712)\frac{11}{12} + \left( -\frac{7}{12} \right)1211+(−127) To simplify this, let’s break it down step by step. Step 1: Combine the fractions Both fractions have the same denominator of 12, so we can directly add the numerators. 1112+(−712)=11+(−7)12=11−712=412\frac{11}{12} +
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M16631 2020-2021 lyzing Electron Dot Diagrams model correctly represents the electron dot diagram of antimony The Correct Answer and Explanation is: The correct model is the second option for antimony, which shows the symbol Sb with a pair of dots on top and single dots on the other three sides. An electron dot diagram, also
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SbF4 has 34 valence electrons_ How many total electrons are in the Sb expanded outer shell? The Correct Answer and Explanation is: To determine the total number of electrons in the expanded outer shell of SbF4, we need to follow a few steps. Here’s the breakdown: Step 1: Valence Electrons in SbF4 The compound SbF4
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The name of the compound SOis sodium trioxide sulfur trioxide sulfur (III) oxide sulfur (VI) oxide The Correct Answer and Explanation is: The correct name of the compound SO₃ is sulfur trioxide. Explanation: The compound SO₃ is made up of sulfur and oxygen. In naming chemical compounds, especially oxides, the rules of nomenclature for molecular
The Correct Answer and Explanation is: To convert the distance from Earth to the Sun (1.50 x 10^8 km) into Terameters (Tm), we can use the given conversions: 1 Tm = 1 x 10^12 meters1 km = 1 x 10^3 meters Step 1: Convert kilometers to meters First, convert the distance from kilometers to meters.
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) Carbonic acid (H2CO3) is a diprotic acid with Ka1=4.3×10−7; Ka2=5.6×10−11. The Correct Answer and Explanation is: Here is the correct solution to the problem presented in the image. A) Write the reactions for the stepwise dissociation of carbonic acid.The handwritten reactions are correct. Carbonic acid (H₂CO₃) is a diprotic acid, meaning it can donate two protons
Carbonic acid (H2CO3) is a diprotic acid with Ka1=4.3×10−7; Ka2=5.6×10−11. Read More »
What is the acid dissociation constant expression (Ka) for the reaction of H2CO3 The Correct Answer and Explanation is: The acid dissociation constant expression (Ka) for the dissociation of carbonic acid (H2CO3) can be written as follows: H2CO3 (aq) ⇌ H+ (aq) + HCO3- (aq) The Ka expression is given by: Ka = [H+][HCO3-] /
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