ne of the best learning in school is learning HISTORY, i.e. the history of Chemistry, we know that Chemistry started from:  a. all of the choices "here" are correct and acceptable b. 'it started from sheer intellectual study of alchemist' c. ambitions to turn rocks into shiny expensive metals d. the needs of early humans, magic and speculations *Choose only one answer

Q: Chemistry deals with the study of the relationship between electrical and chemical ?:energy is…

A:

Q: You find a solid material and you want to find the identity of this sample. You measure the mass of…

A: Mass of the sample is 52.635 g. Volume of water is 466 mL.

Q: . A chemist mixes sodium with water and witnesses a violentreaction between the two substances. This…

A: The given statement is   A chemist mixes sodium with water and witnesses a violent reaction between…

Q: What is the macroscopic world

A:

Q: When 16.8 g of carbon were burned in the presence of 55.6 g of oxygen, 10.8 g of oxygen remained…

A: One mole of carbon reacts with one mole of oxygen gas to produce one mole of carbon dioxide gas.…

Q: You add chocolate milk syrup to a glass of milk and stir it up the resulting chocolate milk would be…

A: When   we  add chocolate milk syrup to a glass of milk and stir it up. the resulting chocolate milk…

Q: 16. The mass of an object can vary with the object's location. 17. A mass measurement includes the…

A: Since your question has multiple sub-parts, we will answer the first three sub-parts for you. If you…

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: Explain what is the role of temperature on the phases of matter.

A: Anything that occupies space and has mass is called matter. Matter can exist in three physical…

Q: Describe, the structure of matter on the microscopic level.  Explain it to someone who's never heard…

A: Matter is anything that occupies space and possesses mass. Microscopic level is that level which…

Q: 1. Fill in the following table for the classification of matter: Anything that occupies space and…

A: The solution of above question is-

Q: Chapter 1 em 13 13 Part D A pound of coffee beans yields 60 cups of coffee (4 cups = 1 qt). How many…

A: Given that one pound of coffee beans yields 60 cups of coffee.  The conversion of pound to gram…

Q: What is the principal aim of a scientist?

A: A scientist uses the resources in order to bring the change in their area of interest which helps a…

Q: Highlight the five significant contributions of Robert Boyle, Antoine Lavoisier, and John Dalton to…

A: Robert Boyle was born on 1 Jan 1627. He was a scientist with outstanding experimental skills. He was…

Q: Scientists record their experimental observations and conclusions in a lab book or journal. Write a…

A: Rutherford nuclear model observations: In Rutherford's alpha ray scattering Experiment, It was…

Q: what philosophy you believe, the atomism or the natural elements? Why?

A: Atomism Is a philosophical concept. It propose that physical univers is composed of invisible…

Q: A ?? BnO B ?? „NMe2 ?? MeO OMe HO

A: Organic transformations.

Q: What is an element? A. Oxygen and nitrogen joined together. B. A piece of pure nickel C. A water…

A: The question is based on the concepts of general chemistry. it talks about elements which is purest…

Q: 22) An 85.5-g sample of Hg in a barometer 23) A 0.251-g Ti metal heart valve 24) A 10.0-g sample of…

A: 22) Given: Mass of Hg = 85.5 g Atomic mass of Hg = 200.59 g/mol.

Q: d. What is the boiling point of potassium in °F? e. What is the boiling point of potassium in…

A: Boiling point is the temperature at which a liquid changes to vapour phase.

Q: What are the three fundamental laws of chemistry?

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

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: what is the volume of water measured with a Beaker Beaker mass= 110.00g water mass= 45.00 water +…

A:

Q: How does the study of chemistry relate to other areas of study in science?

A: Chemistry is that branch of science which deals with the chemical nature of substances such as their…

Q: 10. The electron is one particle that make up a toms the basic units of which a chemical element is…

A: Electron is a negatively charged subatomic particle. The charge of an electron in -1. In a neutral…

Q: Fossils show that humans have existed

A: By studying the fossil record we can tell how long life has existed on Earth, and how different…

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: Am I right? Sample 1 2 3 Calculations for sample 1 Mass of aluminum dish   1.24g 1.26g…

A: Percentage of water  = mass of watermass of anhydrate  x 100

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: As you know, one way to classify matter is by its material. Metals, nonmetals, and metalloids are…

A: The periodic table's leftmost elements have the strongest metallic characteristics, and when we move…

Q: 1. The initiation of chemistry can be considered from the time of prehistoric man, who used fire in…

A:

Q: 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: For the image attached Draw a graph of the average mass vs. year. Make sure axes are labeled.

A: In the given table, the average mass and year are indicated very clearly and we only need to draw…

Q: Explain the main goal of chemistry

A: Chemistry is the science that investigates the properties of matter by examining the atoms and…

Q: What is Heterogeneous substance? Give an example?

A: A mixture is a material made up of two or more different substances which are not chemically…

Q: B) What do you know about the chemistry of polymers.

A: Introduction :  The term polymer can be defined as the very large molecules having high molecular…

Q: Refer to the diagram below. Key projectile A projectile B projectile C Which projectile was launched…

A: Hence option C is correct that is projectile C.

Q: total mass i

A:

Q: If atoms are mostly empty space and atoms compose allordinary matter, why does solid matter seem to…

A: The reason why solid matter does not have space within it has to be explained.

Q: Chemistry is the study of ______

A: Chemistry is the study of matter and chemical reactions between different chemicals in the living…

Q: Part A On a mission to a newly discovered planet, an astronaut finds copper abundances of 69.15 %…

A: Given, Abundance of 63Cu = 69.15% Abundance of 65Cu = 30.85% Mass of 63Cu = 62.9300 amu Mass of 65Cu…

Q: Part 2: Dehydration of a hydrate salt 5. 6. Explain why a change in the mass of the chemical…

A: 5) Hydrated salts are the salts that have a presence of the water of the crystallisation in their…

Q: Mixtures can be classified as either homogeneous or heterogeneous. Compounds cannot be classified in…

A: In this question we need to define the terms compound , mixture , homogeneous and heterogeneous . We…

Q: blanks in the statements below: o A mixture of sodium chloride and ammonium chloride can be…

A: The question is based on the concept of separation techniques. There are various techniques used in…

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.