Symbols or atoms of what element(s) are missing from the line drawings?

Q: Fill in the blanks by writing the name of the definition: is a substance made up of only a single…

A: an element is a substance that cannot be broken down into any other substance every element is made…

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: What is the value of Avogadro's number?

A: Answers are given below.

Q: suggested that everything was made of atoms

A: According to Dalton's atomic theory,  matter is consists of tiny paricles ,called atoms

Q: . What is the 3rd most prevalent element in the human body (name, not symbol)?

A:

Q: HOW THE EARLY CONCEPTS OF ATOM WERE DEVELOPED BY THE GREEK FOUNDING FATHERS. AVOID PLAGIARISM

A: The ancient Greek philosophers were among the first to develop the concept of atoms, the smallest…

Q: Below are some chemical fertilizes, molecular compounds of lonic compounds. What is the atomic…

A: “Since there are multiple sub-parts in this question and it is not mentioned that which one has to…

Q: SPECIFIC most signifant object made from

A: In this question we have to explain some examples of specific most signifant object made from metal…

Q: For the following isotope, selenium -77, indicate the number of protons, neurons, and electrons.

A:

Q: State law of definite proportions.

A: Given: Law of definite proportions.

Q: Questions and Problems (May be assigned before or after the experiment, depending on your…

A: It was observed that upon mixing of the clear liquid and of the white solids, the flask holding the…

Q: Use the References to access important values if needed for this question. plete the table below for…

A:

Q: Where on the periodic table are the most nonmetallic elements found?

A: Elements that gains electrons and form their respective anion are known as non-metals.   Seventeen…

Q: Which of the following is FALSE about elements? O A. The elements carbon, hydrogen, oxygen, and…

A: Answer Option C. Elements are pure substances made of just one kind of atom

Q: +, - nich of the following correctly indicates whether the solid represented by the particulate…

A: Need to examine both positive and negatively charged ions in the given model

Q: The recommended daily allowance (RDA) of calcium is 1.2 g. Calcium carbonate contains 12.0% calcium…

A:

Q: Which answer choice best describes a heterogeneous mixture? • Mixtures which have a non-uniform…

A: Since you have posted multiple subparts in a question so we are answering first 3 subparts of your…

Q: Write a complete chemical formula, including physical state symbol, for each element listed below in…

A: Each and every element has different chemical symbols or formula, which specific for them but…

Q: A newly discovered element consists of 2 isotopes, one with a mass of 11.34 amu and a relative…

A: Mass of one of the isotope newly discovered element =11.34 amu  Relative abundance= 17.2 %  Mass of…

Q: 2. Elizabeth has two separate samples of the same substance. One sample is in the liquid state, and…

A: Elizabeth has two separate samples of same compound and among them one is liquid and one is solid.…

Q: 1.Define matter and classify a given substance by state and composition; and suggest how to separate…

A: (1) Matter is any Substance that has mass, occupy volume, and can be sensed by our sense organs. For…

Q: Write True or False 1. John Dalton proposed the law of definite proportion. 2. Dmitry Mendeleev…

A: Given: 1. John Dalton proposed the law of definite proportion. 2. Dmitry Mendeleev arranged the…

Q: Based on the following word descriptions,write the formula for each of the indicated substances.a. a…

A: A formula of any compound which represents number of the all types of atoms of that compounds…

Q: True or False -Atomic theory doesn't need to be taken seriously because it's just a theory ....

A: Given statement is, Atomic theory doesn't need to be taken seriously because it's just a theory

Q: 5. One of the steps in the commercial process for converting ammonia to nitric acid is the…

A:

Q: Rank the elements in the table below in order from least to greatest number of atoms. Mass (g)…

A:

Q: How many electrons are in gold atom? Does protons also take part in chemical reaction?

A: Gold is a chemical element with the symbol Au and atomic number 79, making it one of the higher…

Q: Enter the symbols for the ions of sodium and phosphorus .

A: Sodium is an element which lies in group IA.  Sodium has a charge of +1.  Losing of one electron…

Q: A Chemistry student at Agora is calculating the average atomic mass of Potassium using the following…

A: We are given the atomic mass and relative abundance of the two isotopes of potassium(K). We have to…

Q: Enter the symbols for the ions of calcium and sulfur.

A: The chemical symbol of calcium is Ca The chemical symbol of sulfur is S

Q: Write a complete chemical formula, including physical state symbol, for each element listed below in…

A: Group 18 elements are called noble gases and they all are monoatomic gases.

Q: Please define the atomic theory proposed by scientist considering to experimental set up.

A: Various experiments defined the theory of the atom.

Q: 40 Li ions were formed. How many electrons were removed?

A: Given, number of Li ion formed = 40 Li ion number of electrons were removed = ? Note:  Li ➝ Li+ + e-…

Q: Consider the mass of Sulfur and Fluorine in compound A (16.6 g S, 9.80 g F) and compound B (23.2 g…

A: According to atomic theory the atoms do no react in arbitrary numbers but in multiples of fixed…

Q: Part 1: Vocabulary Define the following terms: (from what you remember from middle school) Matter:…

A: Answer for part 1 Matter It is the substance of which any physical object consist. Atom It is the…

Q: Below are some objectives. Check if each objective possesses the SMART characteristics. If not,…

A: In the given questions some objectives are given. 1. Position of an element in periodic table gives…

Analytical Tools

Analytical tools or analysis tools help one to get into a conclusion or results from the data collected. Analytical tools can be applied for simple data sets and also in the case of big data analytics.