The diagram shows balls of aluminum foil dropped intowater. In one case, the ball floats on the water; in theother case, it has been squeezed into a smaller ball andsinks.What does this indicate about the relative densitiesof the two aluminum-foil balls? Does this mean that thedensity of aluminum is not constant? Explain.

Q: Which of the following statements is true concerning the characteristics of ther O Mixtures are all…

A: Given question is related to identifying the true statement.

Q: 56.172g of pure (elemental) Si is equivalent o how many moles of Si?   A): 6.02 x 10^23 moles of…

A: SOLUTION Mass of elemental Si = 56.172 g Atomic mass of Si =  28.086 g/mol Moles of Si =…

Q: 5.00 g of copper is reacted with 5.00 g of sulfur in a crucible and acompound composed of copper and…

A: The question is based on the concepts of reaction  Stoichiometry. we know the amount of product…

Q: Nitrogen trioxide is a(n) element compound homogeneous mixture heterogeneous mixture

A: Given that, the name is: Nitrogen trioxide

Q: The ionic radius of a sodium ion is 2.27 angtroms. What is this lenth in um?

A: The ionic radius : The ionic radius the distance from nucleus to the outermost electronic shell.

Q: A volatile liquid (one that easily evaporates) is put into a jar, and the jar is then sealed. Does…

A: Law of conservation of mass: According to the law of conservation of mass, for a closed system to…

Q: 7) To elements in the gas state react to form a new compound. Based on the state of matter of the…

A: Reactions in which two or more chemical species combine to form an entirely different species is…

Q: Which is more "correct", a theory or law?

A: Given statement is :  Which is more "correct", a theory or law?

Q: The radius of a lead atom is 175 pm. How many lead atoms would have to be laid side by side to span…

A: Initially we need to convert Picometer to Millimeter.

Q: 200 g of a silicon compound is decomposed, resulting in 41 g of solid silicon and the remainder of…

A: Calculate the number of moles of both the compounds. nSiClF3 = WSiClF3MSiClF3nSiClF3 =200 g120.5…

Q: If you have 100 particles of hydrogen and 100 particlesof oxygen, how many units of water can you…

A: Limiting reagent It is the reagent that is completely consumed in a reaction. It determine the…

Q: 9) A cube containing two sodium atoms has a mass of 7.64 x 1023 g and a density of 0.963g/cm³.…

A:

Q: Does the type of molecule/element matter or the number of particles matter when we are considering…

A: Given:Type of molecule/element matterThe number of particles matter Determine the type of…

Q: How many grams of oxygen (O) are present in a 6.41 g sample of potassium nitrate (KNO3)? Enter your…

A: Potassium nitrate (KNO3) is ionic compound and it contains one potassium, one nitrogen and three…

Q: Which of the following gases are elements? O NH, O 0, O N,0 Rn Ar O 0, so, O H,S HCN NO NO, O He

A: Elements are the pure substances that are made up of only one kind of atoms, We are given some list…

Q: in her pocket for a few hours. When she took out the chocolate bar to eat it, the bar was was no…

A: Given, examine the state of the chocolate bar in the morning and then in the evening.

Q: Which of the following formula and chemical name combinations is correctly shown? A B D N₂O₂;…

A: Given different chemical formula and their corresponding names. We need to identify the correct pair…

Q: Match the description below with the following microscopic pictures. More than one picture may fit…

A: Answer:When two or more than two gases are present in a system then it is called as mixture of…

Q: Why was it necessary for separation techniques and methodsof chemical analysis to be developed…

A: Law of definite composition states that the composition of a particular compound is the same no…

Q: Form X Form Z foms of the same substance, form X and lom 2, that ditter in the aran

A: The density is the relationship between the mass of the substance and volume. It is a measure of…

Q: 1. A student measured a 6.790 g sample of a hydrated salt. After heating, the mass of anhydrous salt…

A: a. Given that weight of hydrated salt is 6.790 g and mass of anhydrous salt is found to be 4.501 g.…

Q: Identify the incorrect statement. For a given substance, different mixtures can have different…

A: To solve this problem we have to know about the statement which is incorrect .

Q: The density of aluminum is 2.70g/cm^3. For a block of 275g of aluminum calculate the density in…

A: The volume of aluminium and the number of aluminium atoms present in 275 g aluminium is needed to…

Q: A volatile liquid (one that readily evaporates) is put into a jar, and the jar is then sealed. Does…

A: To study the nature of volatile liquid when placed in a closed system

Q: a heterogeneous mixture is

A: In this question we have to tel that what is correct option of heterogeneous mixture.

Q: 2.) Suppose you're attempting to measure the density of a liquid that is highly volatile (it…

A:

Q: classsify into solid, liquid or gas Particles are close together but are not held rigidly…

A: To identify whether the given statement represents solid, liquid or gas.

Q: A 81.15 g sample of a compound containing potassium, chromium and oxygen is analyzed as containing…

A:

Q: Don't use chat gpt okk. Just make handwriting can understand table fill etc......

A: Let the black atom as X and the white atom as Y if they are making a compound. Let the black atom as…

Introduction to chemistry

Chemistry is a branch of science that deals with the analysis of material and the substances that comprise it. It also manages the properties of these substances and their reactions to form new substances. It is basically centered on particles and atoms that make up components and mixtures. These chemical species will in general connect using bonds.