Draw each of the models of the atom below, and fill out the chart. Thomson (plum pudding model) Rutherford (nuclear model) Picture Merits (pros) Limitations (cons) 10 Bohr (planetary model) Modern atomic theory

Q: 1. Platinum ( pt) a. Write the physical and chemical properties of the element above. b. Write the…

A: Please find your solution below :  a. Physical properties : Atomic number = 78 Atomic mass =…

Q: When a substance changes from a liquid to a solid, which of the following is TRUE? a) b) c) The…

A: There are more attraction forces between the particles of solid than that of liquid.

Q: Define substance and chemistry.

A: Given terms,      Substance and chemistry

Q: Our actions cause change. Can we ever be certain of the effects of our actions?

A:

Q: - Write a paragraph about the difference between a chemical and physical change. Give examples of…

A: To differentiate: Chemical and physical changes.

Q: Both a mixture and a compound are combinations of substance. So explain how they are different

A: Compounds  - These are the substances that  are made up of more than one type of atoms. Mixture…

Q: What does salinity mean? O A. A measurement of the amount of floating particles in fresh water. O B.…

A: Salinity : it is also known as saltiness. It is defined as amount of salt dissolved in a water body…

Q: Many processes occur in the digestive system. Which process is best classified as a physical change?…

A:

Q: Discuss the Atomic and Molecular Perspective of Chemistry?

A: Solution :    Chemistry is one of the branches of science that involved the study of elements and…

Q: Gas is defined as O a. the form of matter that is easily compressible and will fit into a container…

A: There are three states of matter, solid, liquid, and gas. In the solid states, the intramolecular…

Q: A mixture that is formed in such a way that each of its components retain their identity and the…

A: The type of mixture has to be identified.

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

A: Given: Aluminum

Q: A unifying principle that explains a body of facts and relations is referred to as Oa hypothesis. O…

A:

Q: 1. A friend claims that a metric ton is more than twice the mass of an English ton because a…

A: 1. A friend claims that a metric ton is more than twice the mass of an English ton because a…

Q: what's the difference between natural law and a theory?

A: The difference between the natural law and a theory with aspects to chemistry is explained in next…

Q: Oa. 01s² σ*1s2 02s2 o*2s2 n2pу2 02px² π*2py2 σ* 2 Ob. 01s2 0*1s2 02s2 σ*2s2 π2ру2 π*2pz2 02px²…

A: The image you've uploaded shows a set of molecular orbital (MO) configurations. To determine which…

Q: Vhich statement about pure substances and molecules is correct? Molecules cannot be pure substances.…

A: molecules are made up of two or more atoms combining in a specific ratio. Pure substances are those…

Q: 12. What is an element? A compound?

A: An element and a compound has to be defined.

Q: Describe the scientific approach to knowledge. How does it differ from other approaches?

A: A Scientific approach to knowledge is a way of learning that is based on observations and…

Q: Which substance can be separated by filtration?  A. Compound B. Element C. Mixture D. Solution

A: Matter exhibits two types of property:  Physical and chemical

Q: Please explain if the following situation describes a chemical or physical change. Then, nln ploase…

A: A physical change involves only change of physical forms. It doesn't involve any changes in…

Q: 2. Which of the following statements is a theory? A. In a reaction, the total mass of reactants is…

A: A) In a reaction total mass of reactant is equal to total mass of products - Law of Conservation of…

Q: Which two options describe behaviors of particles that are related to the chemical properties of the…

A:

Q: A student added 5 grams of calcium chloride, a white solid substance, to 15 grams of water at 220 C.…

A: Given : 5 g of Calcium chloride i.e CaCl2 is dissolved in 15 g of water at 22 oC.

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: Sugar is a compound made of the elements carbon, hydrogen, and oxygen. If you add sugar to water,…

A: In this question, we have to distinguish between compound and mixture.

Q: Classify each statement as an observation, a law, or a theory. Chlorine is a highly reactive gas.

A: A series of similar respective observations leads to the development of a scientific law. A theory…

Q: What is meant by the statement, “Matter does what moleculesdo”? Give an example.

A: “Matter does what molecules do” has to be defined.

Q: is when two or more substances are mixed evenly. is a combination of substances that are not bonded…

A: Matter is anything that has mass and occupies space. It has three states i.e. solid, liquid and gas.…

Q: What are the three fundamental laws of chemistry?

A: The laws of chemical combinations are the fundamental laws of chemistry.

Q: The difference between heterogeneous and homogeneous mixtures is the degree to which the materials…

A:

Q: True or False? * Qualitative and quantitative data gathered via laboratory experiments is one of…

A: Qualitative data is not numerical, it is descriptive. Quantitative data gives a numerical value,…

Q: Explain the difference between a law and a theory?

A: Various ideas are formulated by the scientists and some are derived experimentally using various…

Q: a d. Ch₂ FCh HNOS H₂SO Br FeBry Br

A:

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.