Which methods separate a mixture according to the size of the particles? distillation and evaporation O filtration and evaporation O distillation and chromatography O filtration and chromatography

Q: Fill in the blanks by writing the name of the definition: is a substance made up of only a single…

A: an element is a substance that cannot be broken down into any other substance every element is made…

Q: Which one of the following is both a compound and a molecule?

A: Molecules made up of 2 atoms of same element or many atoms of different elements whereas Compound…

Q: Question 34

A: Mixture: Combination of two or more different materials in a way that no chemical reaction occurs.…

Q: a. Calculate the Natural Abundance of 4°X and enter it into the chart. b. Calculate the isotopic…

A: The given molecule X has 3 isotopes which are 36X, 38X, and 40X.  Percent natural abundance of  36X…

Q: Which scale is most useful for reporting data from the spectrometer? Why?

A: The two scales used for analysis in UV spectroscopy is percent transmittance and absorbance.

Q: K: Mn: Ge: Kr:

A:

Q: Calculate the density for Zinc Using the atomic mass of Zinc and dimensions of 3.5mmx 2.5mm x 2.5mm

A: Given  Dimension =  3.5 mm × 2.5 mm × 2.5 mm Density = ?

Q: 2. The model represents a(n) A. Compound B. Mixture C. Element D. Electrons

A: An electron in a negatively charged species which are present in atoms, and  are responsible for…

Q: Chemical equations must be balanced to satisfy the O law of definite proportions O law of…

A: Option B is correct.

Q: 1. Sodium 2. Lithium 3. Beryllium 4. Neon_ 5. Calcium 6. 1s²2s' 7. 1s°2s°2p°. 8. 1s 2s 2p³ 9. 1s'…

A:

Q: Identify all of the true statements, regarding elements, compounds, and pure substances.   a)Pure…

A: Elements consist of a single type of atoms. They cant be further divided into smaller structures and…

Q: + 2n + 240 96 (a) 235U + in 137 54 92 12. (c) {He + 2§Mo + }H– (b) 232Th + ộn+ 2Cm 6 961 42- 90 100…

A: For balancing of nuclear reaction sum of mass numbers and atomic number must be same on both…

Q: Solve this

A: The element contains one type of atoms only. The compound has two or more elements. The chemical and…

Q: Classify substance as a pure substance or a mixture. If it is a pure substance, classify it as an…

A: Given: Aluminum

Q: Which statement about pure substances and molecules is correct O All pure substances are molecules.…

A: To define: Pure substances and molecules.

Q: O2P 2p, 2рх 2р, 2рх 2ру 2р, 2pх 2ру Px 2py O2P O2p TT 2p 02s 2s O2s 2s 2s 2s 02s

A:

Q: 59 100- 80- M(102) 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 m/z Relative Abundance

A: Mass spectra helps us to analyse different possible fragments in a given organic compound by various…

Q: What substance is closest to 1.47 g/cm^3?

A:

Q: A pure substance is: composed of two or more different types of atoms or molecules that has constant…

A: We know that -  On the basis of physical properties,We can classify matter into several categories .…

Q: Which statement best describes the relationshipbetween the two samples?A. The compound in Sample I…

A: Two different samples are give. The % of each element is found. As per law of definite proportions,…

Q: Science in Everyday Living 8 Let Us Apply A. Identify the following substances based on their…

A: Element is made up of only one type of atoms. Compounds are made up of elements combine with other…

Q: Which answer choice best describes a heterogeneous mixture? • Mixtures which have a non-uniform…

A: Since you have posted multiple subparts in a question so we are answering first 3 subparts of your…

Q: A gas chromatograph can be used to (more than one answer may be correct) O purify large quantities…

A: Gas chromatography is a technique based on the differential partitioning and migration of components…

Q: Classify substance as a pure substance or a mixture. If it is a pure substance, classify it as an…

A: A compound is a substance is made up of two or more different elements combine together by a…

Q: The following statements are ways in which mixtures differ fundamentally from compounds EXCEPT:…

A: Compounds are explained as substances obtained through chemically combining elements. Mixtures are…

Q: Classify substance as a pure substance or a mixture. If it is a pure substance, classify it as an…

A: A compound is a substance is made up of two or more different elements combine together by a…

Q: 2. What measurements might you record regarding water samples to assist with the quantification…

A: Q2)  The analysis of water samples are done to know the water quality of the water.

Q: What unit is used to measure weighted average atomic mass? angstrom amu O gram nanogram O milligram

A: Weight average mass basically represent the atomic mass of a element or atom.

Q: What would you expect to observe about your anhydrous copper(II) sulfate on a hot, humid day? O it…

A:

Q: The law of constant composition can be used to find the answer  A sample of the chemical compound…

A:

Q: To which classes of matter—element, compound, and/ormixture—do the following apply: (a) law of mass…

A: The law of conservation of mass deals with the conservation of matter and law of definite…

Q: Fill in the blank. Gravimetric analysis relies heavily on the principle of

A: Gravimetric analysis is a method for compound

Q: Which observation illustrates the law of conservation of mass? A.)When 3 g of carbon reacts with 8…

A: Law of conservation of mass states that matter cannot be created nor to be destroyed in a chemical…

Q: How many protons and electrons are there in a neutral atom of each of the following elements?

A: Number of protons in a neutral atom is equal to its atomic number. Number of electrons in a neutral…

Q: Give at least 3 modes or ways to separate the components of a mixture and when can each method be…

A: The different components of a mixture can be separated by using different separations methods some…

Q: How many cm3 are there in 2.11yd3?

A: One cubic yard is equal to 764554.858 cubic centimeters.  In order to convert cubic yard to cubic…

Q: A loss of 0.4 mg of Zn occurs during an analysis of that element. Calculate the percent error (% E)…

A: Percentage error is defined as the ratio of change in the amount of substance by initial amount of…

Q: What is polarity and how is polarity related to how chromatography works?

A: In chemistry, polarity of a molecule is defined as the electric charge distribution over the atoms…

Q: Describe the relationships among matter, atoms, and molecules.

A: To describe: Relationships among matter, atoms, and molecules.

Q: 1. a) Calculate the mass percent of NaHCO3 based on the manufacturer's list of ingredients: 325 mg…

A: mass % of NaHCO3 = mass of NaHCO3 in tabletsum of mass of all ingredients x 100 sum of mass of all…

Q: True or false: When forming conclusions from an experiment, the researcher should compare the…

A: According to atomic theory matter is composed of particles known as atoms.

Q: 6. Which of the following can be separated by decantation? O A. water and rice B. water and pebbles…

A: Decantation : It is the process of seperation of mixture of Immiscible liquids or of a liquid and…

Q: MCQ 9: Two Greek words 'element' and 'measure' constitutes the word A. spectrometry B. stoichiometry…

A: In Greek language, word stoikhein means the element. And word metron means measure. That is why word…

Q: Sample Substance Observat N2O4 3 Fe 4 O2 LiF Sr Al 12

A: Which are excuse in monoatomic or diatomic in nature will called as elements So S,O2,Fe,Sr,Al are…

Q: Water softening is necessary to prevent clog in plumbing and prevent formation of scum in bathrooms…

A: Chemistry can be defined as the branch of science that deals with the study of properties of matter.

Q: 2+ 2A1³+ (aq) + 3Zn(s) → 3Zn²+ (aq) + 2Al(s)

A: Al2(SO4)3(as) +Zn(s) ---> Al(s) +ZnSO4(aq)  After balancing the avobe euqation common ion can be…

Q: During a filtration or distillation experiment, we separate a mixture into its individual…

A: A mixture is a combination of two or more pure substances that retain their chemical identities.  It…