?2.5.2 Test (CST): Where Is Earth? Question 4 of 15 2 Points Match each galaxy to its description. spiral galaxy irregular galaxy elliptical galaxy ? ? ? the Milky Way is one contains mostly older stars contains mostly young stars SUBMIT The Correct Answer and Explanation is: Correct Matches: Explanation Galaxies are large systems of […]
902: Solubility Part 1: Solubility Curves Thinking about solubility, explain why the temperatures on the graph only go from 0°C to 100°C? Which substance is most soluble at 5°C? Which two substances have the same solubility at 80°C? Which substance’s solubility changes the most from 20°C to 70°C? Think: Slope! Which substance’s solubility changes the
Label the two cell parts on the diagram below: – Chromosomes – Nucleus – Endoplasmic reticulum – Chloroplasts – Mitochondria Err, CJ 8r2r 82r3) 8 8 8 8 cregLabel the two cell parts on the diagram below: – Chromosomes – Nucleus – Endoplasmic reticulum – Chloroplasts – Mitochondria Err, CJ 8r2r 82r3) 8 8 8
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How to calculate normality? : 37% HCl solution The Correct Answer and Explanation is: How to Calculate Normality of 37% HCl Solution Step-by-step Calculation: Explanation (300 words): Normality (N) is a concentration unit used in acid-base and redox reactions. It reflects the gram equivalent of solute per liter of solution. For acids like hydrochloric acid
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Write three fractions equivalent to 48/72 The Correct Answer and Explanation is: Three Fractions Equivalent to 48/72: Explanation To find fractions equivalent to 48/72, we need to understand what it means for two fractions to be equivalent. Two fractions are equivalent if they represent the same value or proportion, even though they may look different.
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In the IO3- ion, iodine is the central atom. Based on the Lewis structure of IO3- that obeys to the Octet rule, what is the formal charge on the iodine atom? Make sure to include either a + or – sign for the formal charge. The Correct Answer and Explanation is: Answer: The formal charge
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Why tomato is tamatar but potato isn’t patatar, and potato is aloo but tomato isn’t talu. The Correct Answer and Explanation is: The reason tomato is called “tamatar” in Hindi, while potato is “aloo” (and not “patatar”), lies in their etymological roots and history of adoption into Indian languages, particularly Hindi and other Indo-Aryan tongues.
Draw Lewis structures for each molecular formula. C2H4Cl2 (two isomers) C3H8O (three isomers) The Correct Answer and Explanation is: C₂H₄Cl₂ (1,2-Dichloroethane and 1,1-Dichloroethane) 1. 1,2-Dichloroethane 2. 1,1-Dichloroethane C₃H₈O (Alcohol and Ether Isomers) 1. Propan-1-ol 2. Propan-2-ol 3. Methoxyethane (Ethyl methyl ether) Explanation Lewis structures are diagrams that show how atoms are bonded in a molecule
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Draw the Lewis dot structure for acetic acid (C2H4O2). Include any lone pairs. The Correct Answer and Explanation is: Lewis Dot Structure of Acetic Acid (C₂H₄O₂): Acetic acid has the molecular formula C₂H₄O₂, and its structure includes a carboxylic acid functional group. Here’s the correct Lewis structure: Step-by-Step Lewis Structure: Final Lewis Structure (with lone
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What is 34 & 3/4 inches divided by 2 equal The Correct Answer and Explanation is: Answer: 34 & 3/4 inches divided by 2 equals 17 & 3/8 inches. Detailed Explanation To divide 34 & 3/4 inches by 2, we first need to understand how to work with mixed numbers. A mixed number consists of
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