Standard chemical and physical states of the elements Write a complete chemical formula, including physical state symbol, for each element listed below in its standard state. The first row of the table has been completed for you. element formula iron Fe(s) chlorine sodium helium O O ||

Q: Classify the following as element, compound, homogeneous mixture, or heterogeneous mixture. Some…

A: Homogenous mixture--->>It is a mixture of substances blended so thoroughly that you cannot see…

Q: 11. Pb(NO), # of molecules: # of elements: Name of element: # of atoms Total # of atoms: The #3 is a…

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Q: 39 Which event is an example of a physical change? (1) iron rusting (2) fireworks exploding (4) ice…

A: The changes in the appearance of the substance is called as the physical change. Physical changes…

Q: Indicate whether the following sample of  matter  is a heterogeneous mixture, a homogeneous mixture,…

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Q: . What is the 3rd most prevalent element in the human body (name, not symbol)?

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Q: What are the difference between the properties of Metal and the properties Ceramics materials? use…

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Q: Carla made models of a water molecule and a hydrogen peroxide molecule. Oxygen atom Oxygen atom…

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Q: A compound consists of elements combined in a fixed ratio. True or False

A: An element is a pure chemical substance made of same type of atoms.  The compounds are made up of…

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Q: Write the symbol for one atom of zinc, magnesium, iron, and copper

A: Symbol for one atom of zinc is - Zn Symbol for one atom of magnesium is - Mg

Q: Enter a tick mark (/) in the appropriate column to indicate whether the following are properties of…

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Q: The following picture represents.. Mixtures of elements Mixtures of compounds Molecules of elements…

A: What are the chemical species present in the following

Q: Create a model of the atoms of a substance moving through the solid, liquid and gas states. This can…

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Q: Classify each of the following substances as an element, a compound, or a mixture. Drag the…

A: The element is defined as the purest form on the earth and composed of only one type of atom: an…

Q: Label each substance listed below as an element (E), compound (C), heterogeneous mixture (He), or…

A: All of your previously answered questions are right except #9

Q: Classify the statements as either a physical or chemical property of a protein. Chemical property…

A: Physical property can be observed without changing the composition of a matter. Physical properties…

Q: Which of the following substances contain a rigid arrangement of their constituent molecules? Sugar…

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Q: Identify each of the following elements (give the chemical symbol): a) Is in period 2 and group 13…

A: The periodic table is divided into groups and periods. The rows are known as periods and the columns…

Q: Period 3 The table below shows two physical properties of four substances temperature(28 oC). Which…

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Q: Identify as an element, compound or mixture of compounds

A: Element: Element is a chemical substance which has a single atom and it cannot be broken down in…

Q: Which of the following pairing is incorrect? Seawater - Homogeneous Mixture Magnesium - Element O…

A: Element :-  Pure substance consisting of only one type of atoms is called as element Compound :-…

Q: 5. Hydrogen chloride is decomposed by an electric current to hydrogen (H2) and chlorine (Cl2). Is…

A: The solution is given below -

Q: Physical Properties of Five Given Elements Conducts Brittle or Malleable Attracted to a Element…

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Q: What is the term for the property of a substance that cannot be observed without changing its…

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Q: A chemical change results from a chemical reaction, while a physical change is when matter changes…

A: This is the concept of chemical and physical changes.

Q: Element Compound Heterogeneous mixture Homogeneous mixture охуgen carbon dioxide Answer Bank a…

A: Classification of compund element etc

Q: The element silicon has a melting point of 1,410°C and a boiling point of 2,355°C. It is a weak…

A: Since in the question it is given that it reacts with O2 i.e oxygen in air and form SiO2 i.e silicon…

Q: You may use the internet to search for the chemical symbol of each substance. Example: 1. Solid…

A: As you have posted multiple questions, we will solve the first part for you. To get the other parts…

Q: 1. Which of the following is NOT a pure element Nitrogen Carbon Dioxide

A: Pure substances :- Pure substances consist of single type of particles. Pure substances can be…

Q: Element Compound carbon dioxide iron gold steel sugar potassium silver hydrogen air salt water…

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A: A question based on concept map, which is to be accomplished.

Q: 22. Energy is not considered a form of matter. Which of the following reasons correctly explains…

A: Matter: This is a part of universe. Matter is has measure the mass. Matter has own volume .  Energy:…

Q: 1. Peter, James, nd John perfomed an experiment on acids, bases, and solvents inside the laboratory.…

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Q: 3. Fill in the following chart. Sample Type of Matter (Element, Compound, Mixture) Compound Efement…

A: The samples given are  Ocean water, Glucose (C6H12O6), Apple juice, Oxygen (O2), Blood, Water (H2O),…

Q: State the number of protons in Ag^+. Express your answer as an integer.   State the number of…

A: Electronic configuration of Ag (47) = 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s1 Number of protons…

Q: Table salt (NaCl) isa. an atom. c. a molecule. e. a cation.b. organic. d. a compound.

A: Table salt is a compound.

Q: Discuss one of the Philosophers and his contributions to science history;Give at least 10 sentece

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Q: From the list below, choose the term that best completes each sentence. matter physical change…

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Q: In which of the following is a chemical change occurring? ice forming on a lake adding vinegar to…

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Q: Write a complete chemical formula, including physical state symbol, for each element listed below in…

A: Each and every element has different type of symbolic representations, are known as chemical formula…

Q: Distinguish between the terms in each of the following pairs, using specific examples.. (b)…

A: Distinguish between the physical and chemical properties Physical change-A change in which no new…

Q: 2. Describe Complete the table below to describe four states of matter. State of matter Is shape…

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

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Q: Question 7.KMT is based on the idea that particles of matter are in constant motion.  True  False

A: *According to kinetic molecular theory electron are small in size and undergo ramdom motion here and…

Q: Classify each item as element or compound : gas in a hellium balloon, table sugar,the rust on an…

A: Primarily matter is separated into two main categories which are pure substances and mixtures.An…

Q: Which of the following models represent a(n): element, compound, mixture, ionic solid, gas made up…

A: (1) fig. B is an element figure because there is similar type of molecules shown with a random…

Q: 1. Complete the table: Element Physical State Color Luster iron sulfur mercury magnesium

A: The physical state of an element depends on inter atomic forces. The colour and luster of the…

Q: Chemistry : is the science concerned with composition ,structure and properties of matter as well as…

A: According to the definition of Chemistry , this question can be explained as follows