What is the change in energy experienced by an electron in a hydrogen atom that undergoes an n = 2 to n = 1 transition? What is the energy of the photon emitted during the transition described? What is the wavelength of the photon emitted during the transition described? What region of the electromagnetic spectrum does the emitted energy fall into? Use the following information for your choices. If it is not in the visible light range then write either ultraviolet or infrared (whichever it happens to be). If it is in the visible light range then write the actual color of the light (red, orange, yellow, green, blue, violet)

Q: Explain how you determine the volume of an irregular solid.

A: To Explain: How to find the volume of an irregular object or solid.

Q: If the temperature increases, does the motion of particles increase or decrease?

A: Interpretation - If the temperature increases, then motion of particles increase or decrease is to…

Q: The question is in the picture

A: The methane gas reacts with the chlorine gas and forms carbon tetrachloride. The equation for the…

Q: Which technique separates components of amixture with different boiling points? A. filtration…

A: Distillation is the process which is used to carry separation of a mixture of the component with…

Q: What is the macroscopic world

A:

Q: 14 carat gold (an alloy) is

A: As we know , Alloy is a homogenous mixture of two or more metals or a metal & a non metal…

Q: a. Choose the box that represents a gaseous element.

A: Answer:An element is the pure form of a substance that contains only one type of atoms and gaseous…

Q: Is it possible to have a cluster of paper clips that has a total mass of 3.228 grams and is 100 % of…

A: Is it possible to have a cluster of paper clips that has a total mass of 3.228 grams and is 100 % of…

Q: Could the nugget be made of gold? Match the words in the left column to the appropriate blanks in…

A: Since the nugget is basically a small chunk of gold and other precious metals.

Q: is carbon dioxide classified as an element?

A: Given name is Carbon dioxide  We need to explain can cabon dioxide be classified as an element or…

Q: A Homogeneous mixture can not be separated by physical means. Only chemical! Group of answer…

A: A mixture is composed of two or more number of substances which are physically combined without…

Q: Directions: Fill out the template below for each of the mentioned occurrences of matter phase…

A: “Since there are multiple questions and it is not mentioned that which one has to be solved so I am…

Q: turned into notation

A: From the main question, the answer is given as:heat = 55.983 kJWe need to convert this value into…

Q: Why is it important to calibrate a thermometer with a set of standards having a range of melting…

A: Thermometer

Q: Metal or Nonmetal Explanaton Me CO, Metal or Nonmetal Expianaton

A: We are to discuss the properties given are of metals or non-metals.

Q: So which numbers and units goes in the

A:

Q: Corn Dry Milling will separate kernels to "bugas mais" from "sungo" and "tiktik". What is the…

A: Answer  Corn Dry Milling  will separate kernels to " bugas mais"…

Q: Which of the following would be described as particles in constant random motion? A. solid B. plasma…

A: Liquid has particles in constant random motion.

Q: how would you relate the use of sigma notation to you as a student?

A: Here we need to write the importance of Sigma. Summation or sigma notation is a convenient and…

Q: The human body is primarily composed of which element?

A: The human body mainly composed of six elements named as oxygen (65%), carbon (18.5%), hydrogen…

Q: Summarize why it is important for chemists to study changes in the world ata submicroscopic level.

A: Chemistry is essential for fulfilling our basic needs like food, water, shelter, clothing and many…

Q: How will you explain the differences in the motion of particles in the different phases of matter?

A: Matter is defined as a substance which occupies space and has weight. For example - Table, milk

Q: Match the correct word with the description. v Blood is an example of element. A. v Air is an…

A: Elements are those substances which contain the same atoms with same number of protons while…

Q: Recall from earlier this semester- what does heterogeneous mean?   a. A mixture of chemicals which…

A: The term hetero means different. Which means the mixture should be in different environment so that…

Q: 14.Water is placed in a graduated cylinder up to the 350 ml mark, an irregularly shaped solid is…

A: Given  The initial level of water=Vi=350 mL The final level of water=Vf=400 mL Mass of stone=275 g

Q: What if we were using significant fugures? That will change to nickel.

A: Given Mass of metal = 60.4 g  Volume of metal = volume increased by the metal when placed in…

Q: a) true,

A: To provide the strength, toughness, and endurance at high temperatures, superalloys are made from…

Q: would i put in numbers in the boxes ? are you able to give a real example with numbers  , as this is…

A: To calculate the ∆H from a series of reactions whose ∆H is already given , we need to modify the…

Q: Question 26 Select the incorrect statement from the following options. A. The melting point serves…

A: Pure substance is a form of matter having constant chemical composition and characteristic…

Q: A quantity of substance that can be seen would be considered the A level.

A: The complete sentence is: "A quantity of substance that can be seen would be considered the…

Q: What block of periodic table is copper and nickel in?

A: PERIODIC TABLE - it is defined as  " the arrangement of the known elements according to their…

Q: How to define appearance of substance?

A: The physical appearance of a substance is its colour, size, shape, boiling point, melting point,…

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.