Which phrase describes a compound that .consists of two elements? (1) a mixture in which the elements are in a variable proportion (2) a mixture in which the elements are in a fixed proportion (3) a substance in which the elements are chemically combined in a varíable proportion (4) a substance in which the elements are chemically combined in a fixed proportion Given the particle diagram:

Q: In your own words, define or explain the followingterms or symbols: (a) formula unit; (b) (c)…

A: There are so many molecules present in chemistry. Every molecule has its own molecular formula or…

Q: Complete the following table: Some polyatomic ions name chemical formula carbonate anion hydronium…

A: We know that, anion contain negative charge and cation contain positive charge. So,

Q: Molecules containing only non metal use a prefix system. What is prefix represent 4?

A: When naming molecular compounds prefixes are used to dictate the number of a given element present…

Q: An example of a compound is a) 7. chicken noodle soup powerade air inside a balloon lead pipe baking…

A:

Q: What is the definition of the first compound notation?

A: Given To know the first compound notation

Q: Ical formulas of the following molecules. H.

A: Empirical formula of a compound gives the simplest ratio of the number of different atoms present.…

Q: A certain compound is made up of three chlorine atoms, one phosphorus atom, and one oxygen atom.…

A: Given : The compound has  1) 1 oxygen atom i.e 1 O 2) 3 chlorine atoms i.e 3 Cl 3) 1 phosphorous…

Q: Distinguish between molecular substances and ionic substances in terms of their composition?

A: Ionic compounds have strong ionic bonds while molecular substances have covalent bonds. Molecular…

Q: Differentiate between Molecules and Molecular Compounds?

A: Differentiate between Molecules and Molecular Compounds

Q: Part A You've asked your friends to define the terms "chemistry and "chemical Wth which definitions…

A: answer- the statements with which we agree are 1 - chemistry is the study of the composition,…

Q: Write correct formulas for the following compound, carbon tetrachloride

A:

Q: 1. When we look at the periodic table of elements, why do we not see substances such as water listed…

A: Modern periodic table based upon atomic number of an element. It includes only atomic phase of a…

Q: Write formulas for the following substances anddesignate their physical states.a. nitrogen dioxide…

A: Given information, a. nitrogen dioxide gasb. liquid galliumc. barium chloride dissolved in waterd.…

Q: The carbon combines with the oxygen to form carbon dioxide. A. element; element; compound B.…

A: Elements : Element is a substance that made up of only one kind of atoms. They cannot be decomposed…

Q: which metals do not make multiple charges?

A:

Q: What is the formula for barium nitrate?

A: Barium  Symbol - Ba Group number - 2  Valency =2 Nitrate ion has net -1 charge

Q: In which of the following are the components NOT chemically combined? O unable to predict O compound…

A: Applying definition of mixture, compound and molecules.

Q: What exactly does the first compound notation mean?

A: A compound is a species formed when two or more atoms joined together chemically to form ionic and…

Q: Vhich postulate(s) of Dalton's atomic theory of matter is/are NOT true? A) Atoms of a given element…

A: According to the Dalton's atomic theory of matter, atoms are identical in the given elements. And it…

Q: f Chlorine is

A:

Q: A(n) ___________ is composed of a sugar molecule, aphosphorus-containing group, and a…

A: A(n) ___________ is composed of a sugar molecule, a phosphorus-containing group, and a…

Q: can a molecular formula represent different structures or molecules?

A: Yes a molecular formula can represent different structures or molecules. And those different…

Q: For each of the following pairs of compounds, describe a simple chemical or physical test to…

A:

Q: What is the meaning of the first compound notation?

A:

Q: The diagram to the right represents solid carbon dioxide, also known as dry ice. Which of the…

A: Introduction: Sublimation is a process in which solid substances directly changes to its gaseous…

Q: What is a molecular element?

A: A compound refers to the molecule which contains at least two different type of elements bonded…

Q: Systematically name the following compounds.

A: According to IUPAC nomenclature, first we have to select the longest carbon chain as parent…

Q: The correct formula for palladium (II) hydroxide is ? the correct chemical formula for zinc sulfite…

A: correct formula for palladium (II) hydroxide is  correct chemical formula for zinc sulfite is

Q: Choose the letters that apply: Which of the following connotes FAR from the real forms or existence…

A: Which of the following connotes FAR from the real forms or existence of substances?  a. molecular…

Q: Choose the letter/s that applies: Which of the following connotes FAR from the real forms or…

A: An element is a substance which consists of only one type of an atom that is transformed into a new…

Q: Consider the phosgene (COCI, molecule. What is the central atom? Enter its chemical symbol.

A: →Rule for making lewis dot structure :-1 Calculate total charge :-Valence electrons +(-ve…

Q: What does the term "first compound notation" refer to?

A: First compound notation is solution set to our 'and' compound inequality.

Q: name or formula for each of the following molecules and ionic compounds:  a) magnesium nitrate…

A:

Q: Matching:   1- Fluorine gas  2- Magnesium ribbon  3- Sulfur powder  4- Carbon monoxide  5-…

A: Diatomic molecules are molecules composed of only two atoms, of the same or different chemical…

Q: Which of the following particle diagrams represents a mixture? (Each circle of a diffe B

A: To find: The phase diagram which represents the mixture.

Q: hemical formula for the unknown compound.

A:

Q: List the two types of compounds?

A: Chemical compound is a substance that is composed of identical molecules with atoms of two or more…

Q: Give an example of a binary diatomic formula unit, triatomic molecule of a compound, and triatomic…

A: Atomicity :- The number of atoms present in a molecule is called atomicity . For example :-  H2 is…

Q: What did Lavoisier Vine about the mass of the container with reactants and the mass of the container…

A: An equation representing the reduction of HgO into Hg and O2 and the corresponding mass of the…

Q: Emerald green Crystal of the substance niso 6h2o are used in aichel plating.what is the name of the…

A: The technique by which metal is platted over the surface of other metal or same metal in the…

Q: Which statement is NOT true for the Law of Conservation of Mass? a. The total mass of the reactants…

A: Given : Law of conservation of Mass.

Q: What is the chemical symbol for water

A: Given, Water.Water is a pure substance which is made of two elements.  The elements in water…

Q: 1) What does a chemical formula reveal about the substance it represents?

A: Since we know that a chemical formula is an expression that shows the elements in a compound and the…

Q: nemical compound

A:

Q: nonmetals?

A: Non-metals are defined as elements which are present on the right side of the periodic table, it can…

Q: Metals are arranged in the reactivity series. Why hydrogen is kept in the series though it is not a…

A: Metals depict their reactivity by releasing electrons. Metals get reacted by releasing electrons and…

Q: Which one of the following sentences, regarding the compounds shown below, is incorrect?

A: Intramolecular forces hold atoms together with in a molecule. pH is the negative logarithm of…

Q: Which one of the following substances is named CORRECTLY?

A: INCORRECT NAME                                   SIF4    SILICON (IV) FLOURIDE…