Chimie
Réactions chimiques, stœchiométrie, structures moléculaires et propriétés.
- consider a mixture of oil and water. what terms would you use to descri…
- a student places a small amount of water in a glass dish and then caref…
- what force in liquids causes surface tension? intermolecular forces int…
- use the drop-down menus to complete the sentence correctly. soap is an …
- what is the dual nature of soap molecules crucial for its cleaning acti…
- an imbalance of intermolecular forces leads to surface tension surfacta…
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when carbon dioxide gas dissolves in water, it reacts with the water to…
- **Vessel A (\( 34\text{ }^{\circ}\text{C} \)):** 4 (lowest rate) - **Vessel B (\( 35\text{ }^{\circ}\text{C} \)):** 3 - **Vessel C (\( 36\text{ }^{\circ}\text{C} \)):** 2 - **Ve…
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most of the coal available in the united states is bituminous or \soft\…
* **Vessel A**: 4 (lowest rate) * **Vessel B**: 3 * **Vessel C**: 2 * **Vessel D**: 1 (highest rate)
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the typical pressure of carbon dioxide in an unopened soda can is \\(3.…
350.
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the partial pressure of argon in the atmosphere is \\(0.946\\text{ kpa}…
\(0.00934\) (or \(9.34 \times 10^{-3}\))
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the vapor pressure of water at (80\\text{ }^{\\circ}\\text{c}) is (0.46…
47.37
- write the mass-action expression of \\(k_c\\) for the following chemica…
- identifying the properties of solids, liquids, and gases identify the s…
- reviewing kinetic-molecular theory which of these observations are not …
- soil layers o humus or organic a topsoil b subsoil use the diagram to a…
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which drug contains the chemical thc and affects specific receptors in …
marijuana
- a sample of gas contains \\(6.25 \\times 10^{-3}\\) mol in a \\(500.0\\…
- how many moles of oxygen must be placed in a 3.00 l container to exert …
- thermochemistry crossword across 2. \energy waiting to happen\. 5. the …
- solve a problem involving changing volume and moles of gas. a balloon c…
- a container with a specific volume \v\ changes to \2v\. what happens to…
- a sample of gas is enclosed in a container of fixed volume. identify wh…
- applying information about gases the diagrams show the distribution and…
- describing limitations of kinetic-molecular theory according to kinetic…
- recall the postulates of kinetic-molecular theory. read the list and ch…
- the diagram shows some subatomic particles. quarks which of these state…
- matter, atomic structure, and the periodic table which element has the …
- matter, atomic structure, and the periodic table which substance is a m…
- which pure substance can be classified as an element? \\(\\text{no}_3\\…
- 40 multiple choice 1 point what type of bond will typically form betwee…
- 34 multiple choice 1 point during a uv-visible spectroscopy experiment,…
- 29 essay 1 point what is meant by an atom being in its excited state? 3…
- 26 essay 1 point why is harder to remove an electron from fluorine than…
- in what block, group, and period on the periodic table can the atom wit…
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21 fill in the blank 1 point 909 atoms of silver has what mass? type yo…
<blank>10</blank>
- a 59-kg woman has 0.0097 mol of hemoglobin (molar mass = 64,456 g/mol) …
- examples of physical properties (pages 45-47) 1. a physical property is…
- name ______ class ______ chapter 2 properties of matter compounds (page…
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chapter 2 properties of matter section 2.1 classifying matter (pages 38…
questions 1 through 4 - Question 1: Every sample of a pure substance has exactly the same composition and properties because it is chemically uniform. This statement is true. - Qu…
- four different thermometers were used to measure the temperature of a s…
- which experiment would most likely contain experimental bias? a lab per…
- what is the most appropriate name for the type of cerebral vascular inc…
- select the correct answer. read the sentences from paragraph 3. 3 as th…
- oxygen is acting as an oxidizing agent in all of the following reaction…
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1 (a) the table shows information about some elements (letters are not …
### Part (a) * **(i)** \(2.8.8\) * **(ii)** **Strongest reducing agent:** K
- 1. the proton has a ________ charge and is found in the ________. 2. th…
- q 1.21 in a chemical equation, the substances formed are called _____ a…
- q 1.13 an atom that gains electrons becomes a ______ a cation b isotope…
- q 1.13 an atom that gains electrons becomes a _____. a cation b isotope…
- q1.5 which of the following is a pure substance? a salt water b air c c…
- what is \\(\\delta h_{rxn}\\) for the following reaction? \\cs_2(g) + 3…
- from the following list of aqueous solutions and water, select the one …
- select the correct answer. which of these elements is rarely found in o…
- use the diagram to answer the question: which layer typically does not …
- 4 multiple choice 20 points an example of chemical weathering is: rocks…
- if \\(\\text{h}^+ = 0.0001\\text{ m}\\), then \\(\\text{ph} = \\square\…
- use the example: if \\(\\text{h}^+ = 0.001\\text{ m}\\), then \\(\\text…
- atoms are usually electrically neutral, but they can lose or gain . ele…
- drag and drop into the sentence. an atom has a central that contains an…
- in filtration, the liquid that passes through is called the , while tra…
- which chromatography type is based on electrical charge? select one: a.…
- question 4 not yet answered points out of 1.00 flag question special ca…
- oxygen is acting as an oxidizing agent in all of the following reaction…
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assessment what makes a substance acid? base? or salt?
* **Acid:** A substance that releases hydrogen ions \( \text{H}^+ \) in water, has a pH less than 7, and tastes sour. * **Base:** A substance that accepts hydrogen ions (or releas…
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science 10 - week 2 vinegar- baking soda- orange- soap- milk of magnesi…
Here is the classification of the items from the activity: | Acids | Bases | Salts | | :--- | :--- | :--- | | Vinegar | Baking Soda | Salt solution | | Orange | Soap | Calcium car…
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vinegar- lemon- detergents- baking soda- toothpaste- epsom salt- orange…
Here is the classification of the items from the activity: ### **Acids** * Vinegar * Lemon * Orange * Orange juice * Soda/soft drinks ### **Bases** * Baking Soda * Soap * Detergen…
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what i have learned in general, chemical reactions are fundamental proc…
Learning about chemical reactions helps us make safer, more efficient, and environmentally conscious decisions in our daily lives. For example, it allows us to use household clean…
- 3. this is a diagram of ammonia. this molecule has a central nitrogen a…
- name the following ionic species. naf sodium fluorine sodium monofluori…
- what is the correct formula for the ionic compound that would result fr…
- which image depicts the transfer of electrons between strontium and flu…
- read the paragraph. according to many people, organic food is healthier…
- interpreting indicators ph range noelle tests the ph of a liquid using …
- what term describes this particle model? strong acid weak acid strong b…
- activity 3: name the ions activity: naming ions test complete the table…
- review - year 10 chemistry activity 1 - key terms complete the vocab bo…
- activity 2: for each solution, identify the solute and the solvent. 1. …
- part 2: complete the activity sheet: adding up inferences. make inferen…
- question 112 a pharmacy technician is reviewing a prescription for a ha…
- question 21 a pharmacy technician is preparing to compound drugs. which…
- which choice best matches the idea that existing schemas change with ne…
- oxidation-reduction processes dry cell battery my definition: electroch…
- oxidation-reduction processes dry cell battery my definition: electroch…
- key terms anode my definition: battery my definition: cathode my defini…
- add either a zero or a positive or negative integer to each answer fiel…
- given the balanced chemical equation for the decomposition of ino, and …
- given the particulate model which depicts the mechanism for the decompo…
- 3. explain why aluminium requires electrolysis. 4. state two advantages…
- state one use of copper and explain why copper is suitable for that use…
- multiple choice what do the letters sds stand for? safety data sheets s…
- multiple choice this symbol represents which class of hazard? - fire ha…
- multiple choice this symbol represents which class of hazard? corrosive…
- question 17 (2.5 points) in what section of the pathology chapter of cp…
- 11 multiple choice 1 point which of the following is a schema? the abil…
- the mother of a 25-year-old patient with schizophrenia asks the nurse w…
- the mother of a 25-year-old patient with schizophrenia asks the nurse w…
- the mother of a 25-year-old patient with schizophrenia asks the nurse w…
- which of the following statements apply to chemicals that are not food …
- the wife of a male client recently diagnosed with schizophrenia asks th…
- a female client with obsessive-compulsive disorder (ocd) is describing …