19. List four properties you could use to distinguish between iron and aluminum. State which of them are chemical properties.

Q: Metals are both malleable and reactive. Which statement correctly describes these two properties of…

A: a element is said to be metal if it easily donates electron, its ionization energy is low .

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

A:

Q: Most abundant metal on the surface of the earth:(a) Iron(b) Aluminium(c) Calcium(d) Sodium

A: There are many metal on the surface of the earth but the one that is most abundant on the surface of…

Q: copper C iron C uminum OTHERS C

A: The metallic bond is Sodium which has a lone electron in the outermost orbital.

Q: magnesium + oxygen → magnesium oxide List two physical / chemical properties for each compound

A: Physical properties are properties of substance that can be determined without changing substance's…

Q: c. FeS(s) + 2HCI(aq) → H2S(g) + FeCl2(aq) Soth (b) and (c) a. 2Sb(s) + 31g) b. 2H9O(s) → 2Hg(l) +…

A: Decomposition reaction are the reactions in which the reactant breakdown to form two or more…

Q: The mass of a test tube and hydrate was 35.2755 grams. The mass of the empty test tube was 23.7726…

A: The difference of the mass of test tube and hydrate salt and empty test tube gives the mass of…

Q: What is the characteristic that distinguishes metals from one another?

A: The characteristics that distinguishes metals from one another is  malleability, ductility,…

Q: A molecule has a mass of 4.65 x 10^-23 g. Provide two possible chemical formulas for such a…

A: Given  mass of 1 molecule = 4.65 x 10-23 g we know  mass of 1 molecule = 1 mole  1 mole = 6.022 x…

Q: Iodine and iodine Copper and sulfur Hydrogen and fluorine Carbon and oxygen

A: Given:   4.0 1.7                                                0.4…

Q: What are the chemical symbols for antimony, arsenic, aluminum, boron, gallium, germanium, indium,…

A:

Q: Why is it important to be aware of the ingredients of the food you eat? Is fish good for your…

A: To grasp: Knowledge of foods we eat and characteristics of elements present in it

Q: Part A 1s 25 2p 3s Express your answer as a chemical symbol.

A: The electronic configuration depicts the arrangement of electrons in a molecule. The no. of…

Q: 2) What evidence indicates that new substances with different properties are formed during chemical…

A:

Q: Complete the following tables.

A:

Q: (a) copper(II) nitrate (b) sulfur (c) honey (d) drinking water OUCOTIOU TI

A: Step 1) a) copper(II) nitrate : Cu(NO3)2 It is also known as cupric nitrate formula or copper…

Q: Write any three differences between metals and non-metals on the basis of chemical properties?

A: Metals: Metals are the majority elements in the periodic table. They include transition metals,…

Q: Cu20(s) -170.7 92.4 CuO(s) -156.1 42.6 Cu(s) 33.2

A:

Q: Why a piece of wood is a mixture?

A: Wood is a substance made up of cellulose, hemicelluloses, and lignin.

Q: What is the term for the modification of a substance that does not alter its chemical composition?…

A: Chemical change: In chemical change composition of the substance changes. When bonds are broken and…

Q: What is the relationship between calculating the amount of iron in a vitamin pill and physical…

A: The analysis of present iron in a supplement tablet can be done by a redox titration reaction. Iron…

Q: hich metal is the best conductor of electricity? Choose from the choices below: Gold…

A: The answer of this question is given in step 2

Q: How many of the following elements are metals? Ca Al Sn S As Bi

A: The properties of metals are--- Metals are solid in room temperature (except mercury), they are…

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

A:

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: A. 2NO2(g) → N2O4(9) B. Fe(s) → Fe(1) C. 302(g) → 203(g) D. 12(g) → 12(s) E. 2Fe(s) + O2(g) →…

A:

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: Matter is defined as ....... إجابتك Felite is إجابتك

A: 2. The term matter refers to anything that occupies space and has mass—in other words, the “stuff”…

Q: Three samples (A, B, and C) of pure substance composed ofsodium, sulfur, and oxygen were isolated…

A: A question based on elemental analysis, which is to be accomplished.

Q: Classify these properties of the metal lithium as physical or chemical. Physical Chemical

A: In the given question we have to classify the physical and chemical properties of lithium metal.…

Q: What do metals and nonmetals have in common? A both have high melting and boiling points B both are…

A: Metals are those elements which donate electrons. Non metals are those elements which accept…

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: Marie Curie was a Polish scientist that specialized in chemistry and physics. She wanted to…

A: Marie Curie  Marie Curie is renowned for discovering radium and polonium, as well as for making a…

Q: Explain the process that allowed you to take measurements of mass and volume and determine the…

A: The process that allowed you to take measurements of mass and volume and determine the identity of…

Q: Which of the following is a chemical property? O Changing shape O Melting point O Oxidizing O…

A: A multiple choice question about chemical property.

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

A:

Q: Why do pennies turn "gold" upon heating? What happens on their surfaces?

A: Interpretation -  To tell about why do pennies turn "gold" upon heating and tell about what happen…

Q: hydrogen peroxide → water + oxygen List two physical / chemical properties for each compound

A:

Q: Why are the chemical elements important in the Big history story?

A: A chemical element, also called an element, is anything that can decompose into simple substances…

Q: Mass of crucible and cover   12.73g 2. Mass of crucible, cover, and sample   24.11g 3. Mass of…

A: Total mass lost by sample during heating = Mass of crucible, cover, and sample - Mass of crucible,…

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: 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: The sample is a heterogeneous mixture. The sample is a compound. The sample is a pure element. The…

A: Solution has been provided in Step 2.

Q: SiO2 (s)+ C(s)Si(s) + CO(9) a. SIO2(s) C(s)- Si(s) + |CO() > b. Liquid silicon tetrachloride is…

A:

Q: 8. A 2.856-g sample of limestone was analyzed for Fe, Ca, and

A: A 2.856-g sample of limestone was analyzed for Fe, Ca, and Mg.

Q: What is the process that allows you to take measurements of mass and volume and determine the…

A: Answer: Mass Determination: To determine the molar mass of an unknown metal chemically, first, we…

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.