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MEA Naming components of the scientific method In the table below you will find three descriptions of sclentists engaging in activities that are part of the sclentific method. What are the missing words? description missing word? 5 ? After studying the chemical reactions of many compounds made of carbon, August discovers a chemical bonds to other atoms when it forms a compound. that says carbon always forms 4 about the arrangement of elements in the Wolfgang develops a Periodic Table, based on some ideas about how electrons are arranged in the different atoms of different elements. Using equations he develops, he is able to predict the exact arrangement of electrons in many atoms, and from there predict why they are where they are in the Periodic Table. Antoine burns some charcoal, and a very small diamond (!), and makes that the only product of both reactions is a heavy gas the (carbon dioxide). Explanation Check 2021 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy C…

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Cla Unit 1 Review Answer KEY- Goo X it 1 Quiz #4 Properties of MathX cl.castlelearning.com/Review/CLO/Student/Assignment/Questi Home - Hudl M East Rochest Quizlet Live Quizlet schools.org bookmarks Unit 1 Quiz #4 Pro 1 of 10 Question 1 Review Which statement describes a chemical property of hydrogen gas? 1. Hydrogen gas burns in air. 2. Hydrogen gas is colorless. 3. Hydrogen gas has a density of 0.000 09 g/cm at STP. 4. Hydrogen gas has a boiling point of 20. K at standard pre Standard

What you need is in the picture the chart is in there two but you might have to zoom in to see it Thank You

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Protons, neutrons, and electrons... Oh My! Chemistry seems to trouble the non-science major. Bottom line, it is all about relationships! In this post, you apply critical thinking skills to demonstrate what you've learned about concepts in chemistry, by applying a concept to a real-life situation. This exercise will build your critical thinking skills as well as your creativity. Choose a major concept in chemistry from the notes, define it, and then give an example of how it is applied in real life.

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Classify the substance shown in the sketch below. You can click the other tabs in the sketch to get a magnified view. Be sure you check all the boxes on the right-hand side that are correct for this substance. Note for advanced students: in some sketches the distance between particles has been exaggerated to make it easier to see each individual particle. normal substance 1000X 10,000,000X 000 classification (check all that apply) gas liquid solid element compound mixture solution pure substance homogeneous mixture heterogeneous mixture

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Classify the substance shown in the sketch below. You can click the other tabs in the sketch to get a magnified view. Be sure you check all the boxes on the right-hand side that are correct for this substance. Note for advanced students: in some sketches the distance between particles has been exaggerated to make it easier to see each individual particle. classification substance (check all that apply) normal 1000X 10,000,000X Ogas liquid Osolid lelement |compound Omixture Osolution Opure substance Ohomogeneous mixture Oheterogeneous mixture

i think this is physics and chemistry so i hope you can help me to answer this, only TRUE OR FALSE

Upload a drawing that shows what you think the structure of hydrogen atoms looks like. (Please don't look up, use what you already know.) Be sure to label relevant subatomic particles. Explain your drawing on the same page, providing other information to help us make sense of your representation of the hydrogen atom. No files uploaded

Recognizing the intersection of scientific properties and ideas with the world around you is a key component of this course. By choosing a specific element to discuss, you will begin to understand how all substances are composed of elements that work together to form the world around us. Using the periodic table in Chapter 8 of your textbook, pick your favorite element. Describe this element's properties (i.e. atomic weight, atomic number, metal/non-metal, etc.). In addition to using your textbook, use reliable internet sources to research an interesting fact about this element. Use all of this information to explain why this is your favorite element. Cite your source(s) in APA format.

Element Compound Molecule Density Precision Accuracy Choose at least 2 terms from the list, and answer the following questions for each term:  What familiarity and prior knowledge do you have about the term? What does the term mean in everyday language to everyday people? Use examples to help describe your thoughts. How do people use the word? What does the term mean in technical language to chemists? How is the term related to the course student learning outcome: Explain matter at the microscopic level? What are the similarities and differences between the everyday and technical meanings and uses of the term? What impact might the similarities and differences have on your learning of chemistry concepts in this course?

O east.cengagenow.com heral Chemistry I X OWLV2 | Online teaching and learning resource from Cengage Lear [References] Use the References to access important values if needed Which of the following statements is INCORRECT? Germanium is classified as a metal. Lead is classified as a metal. Tin is classified as a metal. O Silicon is classified as a metalloid. O Carbon is classified as a nonmetal. Submit Answer Try Another Version 5 item attempts remaining

2A Choose an 2B item. Choose an Choose an 20 item. item. Choose an Choose an 2D Choose an item. item. item. v. Complete the predicted observations using 'bubbles', 'no rxn' or the name of the ppt: sodium carbonate + nitric acid – we expect to see Click or tap here to enter text. barium nitrate + nitric acid - we expect to see Click or tap here to enter text. sodium sulfate + barium nitrate – we expect to see Click or tap here to enter text. sodium sulfate + nitric acid - we expect to see Click or tap here to enter text. sodium sulfate + sodium carbonate - we expect to see Click or tap here to enter text. barium nitrate + sodium carbonate- we expect to see Click or tap here to enter text. vi. Choose A, B, C or D to identify the solution in each bottle. barium nitrate nitric acid sodium sulfate sodium carbonate Choose an item. Choose an item. Choose an item. Choose an item.

-23 An oxygen atom has a mass of 2.66 x 10 g and a glass of water has a mass of 0.050 kg. Use this information to answer the questions below. Be sure your answers have the correct number of significant digits. What is the mass of 1 mole of oxygen atoms? Round your answer to 3 significant digits. How many moles of oxygen atoms have a mass equal to the mass of a glass of water? Round your answer to 2 significant digits. 0

The maximum level that the EPA considers safe for lead air pollution is 1.5 micrograms per cubic meter.  If your lungs were filled with air containing this level of lead, how many lead atoms would be in your lungs?  Assume a total lung volume of 5.30 L. I got the correct numerical answer, but my power of ten was off.  I would appreciate if you highlighted the powers of ten throughout the calculation.

Please use this word bank to fill in the blanks of the first 5 questions. Atom 1. S is a/an 2. Sg is a/an (Yes! You can use more than one per blank spot!) element molecule Homogenous mixture 3. MgSO4 is a/an 4. A sample of filtered seawater containing Li+, Na+, K+, SO42, NO3¹, and Cl is a/an 5. A grey sample of basalt riddled with golden cubes of pyrite (FeS₂) is a/an 6. What is the state of S8 (s) at room temperature? compound Heterogeneous mixture 7. Give the full atomic symbol of S. 8. Give the subatomic particles of S.

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[References] For the graph shown below: 45 40 35 30 25 20 15 10 5 FA 4 8. 10 What are the coordinates of point B: (x, y) = What are the coordinates of point E: (x, y) =1 Based on these two points, what is the slope of the line? Slope = Submit Answer Retry Entire Group 4 more group attempts remaining Cengage Learning | Cengage Technical Support MacBook Air 80 DII

Upload a drawing that shows what you think the structure of hydrogen atoms looks like. (Please don't look up, use what you already know.) Be sure to label relevant subatomic particles. Explain your drawing on the same page, providing other information to help us make sense of your representation of the hydrogen atom. Please select file(s) Select file(s)

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Chemistry is the study of matter and how it changes, and matter is composed of atoms and molecules. How do the interactions between molecules and atoms affect the properties (both chemical and physical) of various substances? Use 3 example problems from 3 different chapters, worked out with correct answers, to support your position.

- 23 An oxygen atom has a mass of 2.66 × 10 g and a glass of water has a mass of 0.050 kg. Use this information to answer the questions below. Be sure your answers have the correct number of significant digits. What is the mass of 1 mole of oxygen atoms? Round your answer to 3 significant digits. How many moles of oxygen atoms have a mass equal to the mass of a glass of water? Round your answer to 2 significant digits. 0 g x10 X

Please answer 10 Part A

ks People Tab Window Help 71% O Mon 12:30 PM Tap - Cengage Learning 0/index.html?deploymentld=D55750828934189288909969212&elSBN=9781305657571&snapshotld%3D2199898&id=.. Up UDTAP Q Search this course Use the References to access important values needed for this question. Potassium permanganate in acidic solution is used to titrate a solution of iron(II) ions, with which it reacts according to MnO, (aq) + 5Fe²*(aq)+8H3O*(aq)- →Mn²+ (aq) + 5Fe*(aq)+12H20(1) A potassium permanganate solution is prepared by dissolving 16.89 g of KMNO4 in water and diluting to a total volume of 1.000 L. A total of 15.80 mL of this solution is required to reach the endpoint in a titration of a 150.0-mL sample containing Fe2*(aq). Determine the concentration of Fe2+ in the original solution. M Submit Answer 5 question attempts remaining