Use triangles to represent atoms of element A and circles to represent atoms of element B. Draw an atomic level view of a homogeneous mixture of elements A and B. Draw an atomic view of the compound AB in a liquid state (molecules close together). Draw an atomic view of the compound AB after it has undergone a physical change (such as evaporation). Draw an atomic view of the compound after it has undergone a chemical change (such as decomposition of AB into A and B).

Q: In 1808, John Dalton proposed a series of statements regarding the atom that became known as…

A: Given, Five statements of Dalton's atomic theory is given -     Required,                   Among…

Q: Matter is made up atoms, but in a real chemistry lab, we measure substances in grams. Therefore you…

A: Consider the given information about quartz is as follows; One molecule of quartz contains = 1 atom…

Q: Using white and black circles to represent different kinds of atoms, make a drawing that accurately…

A: Given samples of matter,         A solid element, a liquid compound, and a heterogeneous mixture.

Q: In the table below, there are descriptions of an experiment on samples of three different chemical…

A: Given that : We have to identify whether the elements are metal or non-metal form the given…

Q: There are four sketches below. The first sketch shows a sample of Substance X. The three sketches…

A: The changes are as follows according to the given microscopic structure.

Q: In the following drawing, the green spheres represent atoms of a certain element. The purple spheres…

A: The left side of the reaction has one green element and two blue elements because they are of two…

Q: The following diagram represents a chemical reaction in which the red spheres are oxygen atoms and…

A: a) In the left box, there are two type of molecules, one is oxygen (O2) and other is Nitrogen and…

Q: We experimented on various elements: Mossy Zinc, Aluminum Turnings, Copper Turnings, Activated…

A:

Q: Change 1 Change 2 Change 3 Change 1 is: Change 2 is: Change 3 is: impossible impossible impossible a…

A: Applying definition of physical and chemical changes. A change which provides new matter is chemical…

Q: Neon consists of three isotopes, Ne-20, Ne-21, and Ne-22. Their abundances are 90.48%, 0.27%, and…

A: GIVEN  Ne 20, Ne 21,Ne 22 are three isotope of Neon  Abundance: Ne 20 ( 90.48%) ,Ne 21 (0.27%), Ne…

Q: 2) a) Write formulas for the figures. Dark circles represent element A and light circles represent…

A: Atomic element : Atomic element have single atoms as their basic unit. Molecular element : The…

Q: In the following drawing, the green spheres represent atoms of a certain element. The purple spheres…

A: In the given chemical change, the starting materials consist of four green spheres and two purple…

Q: What does the law of conservation of matter mean in chemistry? O a. The state of the matter should…

A: The law of conservation of matter in Chemistry based on the fact that during a process total mass is…

Q: Figure 3. Diatomic molecules of the element chlorine, Cl2. This Figure 4. Molecules of the compound…

A: ⇒All atoms are made up of tiny particles ie,protons,neutrons and electrons⇒A n element is a pure…

Q: Two samples of sodium chloride with different masses were decomposed into their constituent…

A: The law of constant composition or law of definite proportions or law of definite composition states…

Q: D. Empty Volume Determination of Aluminum A sample of aluminum weighs 27.0 g and has a volume of…

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

A: Pure elements are made up of a single type of atom only. All the atoms should be of similar type.…

Q: Using triangles to represent one type of atom and circles to represent another type of atom, draw…

A: Given: Using triangles to represent one type of atom and circles to represent another type of atom,…

Q: Which elements have molecules as their basic units?(a) helium (b) oxygen(c) iron (d) bromine

A: The elements which have  molecules as their basic units has to be given,

Q: Suppose that mercury forms a perfect spherical droplet with a diameter of 5.0 mm. (a) What is the…

A: Density is given by the ratio of mass of the substance to its volume. 1 mole of a substance contains…

Q: 2.1. In the following drawing, the green spheres represent atoms of a certain element. The purple…

A: Hey there thankyou for the question.    By law of constant proportion all samples of a pure compound…

Q: There are four sketches below. The first sketch shows a sample of Substance X. The three sketches…

A: Answer:- This question is answered by using the simple concept of physical change and the chemical…

Q: Sample of Substance X Change 1 Change 2 Change 3 Change 1 is: Change 2 is: Change 3 is: O impossible…

A: Physical changes are those changes in which only Physical state of matter change, while their…

Q: 1. Which is true about the Law of Conservation of Mass? 3. What was one of the tests that Lavoisier…

A: 1. D. Atoms cannot be created or destroyed, only rearranged. The Law of Conservation of Mass implies…

Q: In the figure shown, is a chemical reaction occurring? Yes, because the atoms have rearranged to…

A: A reaction in which reacting atoms chemically combine with each other to form a new substance is…

Q: Let a triangle represent atoms of element A and a circle represent atoms of element B.a. Draw an…

A: A homogeneous mixture is a mixture in which the composition is uniform throughout the mixture.…

Q: Based on the following word descriptions, write the formula for each of the indicated substances.a.…

A: A formula of any compound which represents number of the all types of atoms of that compounds…

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: 4. A bottle of Gatorade has a volume of 516 mL. What is this volume in quarts(qt)? (1 qt = 0.946 L )…

A: 4), Given. 0.946 L=1 qt We can say that, 946 mL=1 qt 1 mL=1946qt So, 516 mL=1946×516qt…

Q: 2 .What is the 2nd most prevalent element in soil (name, not symbol)?   3. What is the name of the…

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Q: How do the molecules of a compound differ from the moleculesof an element?

A: Molecules are group of atoms where the atoms are held together by a chemical bond. They can result…

Q: What is the mass of magnesium fluoride that contains 7.29 × 1024 F atoms?   Relative atomic…

A: Given,  The mass of magnesium fluoride that contains 7.29 × 1024 F atoms is:

Q: true or false (h)  All atoms of the same element have the same number of electrons.  (b) All atoms…

A: h) All atoms of the same element have the same number of electrons. The given statement is False.…

Q: In the following descriptions the particles are atoms, molecules, or ions.To which sample above does…

A: Comparing solid, liquid and gas, gases are more compressible since most of the volume of a gas have…

Q: Identify as true (T) or false (F): | Minerals separating from flowing water as stony deposits…

A: Since you have posted questions with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: There are four sketches below. The first sketch shows a sample of Substance X. The three sketches…

A: Chemical change: The process in which the molecular composition is completely changed, and a new…

Q: True or false is an atom is the smallest building block of matter

A: False

Q: In the reaction 1. the Law of Gravity. CACO3 CaO+ CO2 2. the Law of Conservation of Energy. 100…

A: Here, it is given that the mass of calcium carbonate is 100 grams and the products formed will have…

Q: Answer the following True/False questions: Write T for True and F for False. Moreover, if the…

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Q: Sample of Substance X Change 1 Change 2 Change 3 Change 1 is: Change 2 is: Change 3 is: O impossible…

A: Physical change is defined as the one in which the form/state of the particle changes but their…

Q: An element's percentage of the total mass in a compound containing the element. A law stating that…

A: The composition of a chemical compound is determined using elemental analysis of inorganic elements.…

Q: Ca^2+ and S^2- as a chemical formula

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Q: There are four sketches below. The first sketch shows a sample of Substance X. The three sketches…

A:

Q: Fill in the blank using the following words: atom, atomic number, electron, proton, neutron, metal,…

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Q: The nature of the elemental matter depends on which factor in the atom and what factors are added to…

A: Valence electrons are the electrons present in the outermost shell.

Q: Which of the following statements are true of chemical reactions? a. The number and types of atoms…

A: A chemical reaction will occur between two or more reactants, and during the reaction, law of…

Q: Classify the statements pertaining to elements and compounds as either true or false. True False…

A: We are given different statements in the image we have to classify the statement as true and false:…

Q: 2. The creation of carbon monoxide is an effect. What is one cause? A. the regrouping of the atoms…

A: 2. Operating a stove. 3.  A harmless compound can become harmful when its elements are separated. 4.…

Q: Two samples of sodium chloride with different masses were decomposed into their constituent…

A: Given: Mass of sodium in sample 1 = 2.91 g. And mass of chlorine in sample 1 = 4.48 g.

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…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.