What is a true statement about compound?
A compound contains at least two different kinds of atoms. Another way to say this is that a compound is a substance made up at least two different elements. Oxygen, O2, is an element because it has two of the same kinds of atom.
Which statement best describes how a compound different from an element?
An element is a substance that cannot be chemically decomposed into simpler substances. An atom is the smallest particle of an element that can take part in chemical reactions. A compound is a substance formed from two or more elements chemically joined (bonded) together.
Which of the following is example of a compound?
A compound is a material composed of two or more components. Water, carbon dioxide and table salt are some examples of compounds.
What is a compound statement give an example?
A com- bination of two or more simple statements is a compound statement. For example, “It is snowing, and I wish that I were out of doors, but I made the mistake of signing up for this course,” is a compound statement.
What is simple statement and compound statement?
A simple statement is one that does not contain another statement as a component. These statements are represented by capital letters A-Z. A compound statement contains at least one simple statement as a component, along with a logical operator, or connectives.
Which statement correctly describes why a compound is a pure substance?
Which statement correctly describes whether a compound is a pure substance? A compound is a pure substance because its molecule cannot be broken down into simpler particles by physical means.
Which substance is a compound?
A compound is a unique substance that consists of two or more elements combined in fixed proportions. This means that the composition of a compound is always the same. The smallest particle of most compounds in living things is called a molecule. Consider water as an example.
Which of the following defines a compound?
A compound is a substance that results from a combination of two or more different chemical elements, in such a way that the atoms of the different elements are held together by chemical bonds that are difficult to break.
What is a compound element?
Note that a compound: consists of atoms of two or more different elements bound together, can be broken down into a simpler type of matter (elements) by chemical means (but not by physical means), has properties that are different from its component elements, and. always contains the same ratio of its component atoms.
What is a compound statement quizlet?
Compound statement. Two of more statements joined by the words and Or or. Conjunction.
How do you write a compound statement?
0:303:43Write a compound statement in symbolic form – YouTubeYouTube
Which statement best describes A compound quizlet?
Which of the following statements best describes a compound? A compound contains two or more different elements in a fixed ratio.
Which substance is A compound quizlet?
What is a compound? A substance that contains two or more elements chemically combined in a fixed proportion… example is carbon, oxygen, and hydrogen are chemically combined in the compound sucrose.
What are properties of a compound?
A compound has unique properties that are distinct from the properties of its elemental constituents. One familiar chemical compound is water, a liquid that is nonflammable and does not support combustion. It is composed of two elements: hydrogen, an extremely flammable gas, and oxygen, a gas that supports combustion.
Which substance is a compound quizlet?
What is a compound? A substance that contains two or more elements chemically combined in a fixed proportion… example is carbon, oxygen, and hydrogen are chemically combined in the compound sucrose.
What are the properties of compound?
Properties of Compounds It is composed of two elements: hydrogen, an extremely flammable gas, and oxygen, a gas that supports combustion. A compound differs from a mixture in that the components of a mixture retain their own properties and may be present in many different proportions.
Which of the following property does not describe a compound?
The composition of two or more constituent elements have their own properties after mixing in a same or definite proportion. This property doesn't describe a chemical compound.
What is a compound in science definition?
Listen to pronunciation. (KOM-pownd) In science, a substance made from two or more different elements that have been chemically joined. Examples of compounds include water (H2O), which is made from the elements hydrogen and oxygen, and table salt (NaCl), which is made from the elements sodium and chloride.
What is a statement quizlet?
statements are in a argument offered as evidence or reasons why we should accept another statement the conclusion. Conclusion. the statement in an argument that the premise are intended to prove or support. You just studied 23 terms! 1/23.
Is a statement which is always false?
The opposite of a tautology which is a statement which is always false: Self-contradiction (self contradictory statement) a statement which is necessarily false on the basis of its logical structure.
What are compound sentences?
A compound sentence consists of two or more independent clauses joined with a comma and coordinating conjunction, also known as the FANBOYS (for, and, nor, but, or, yet, so). In addition, you can join independent clauses with a semicolon or with a semicolon, conjunction adverb, and a comma.
Which is not A compound quizlet?
All compounds are molecules but not all molecules are compounds. Molecular hydrogen (H2), molecular oxygen (O2) and molecular nitrogen (N2) are not compounds because each is composed of a single element. Water (H2O), carbon dioxide (CO2) and methane (CH4) are compounds because each is made from more than one element. .
Which statement best describes a compound quizlet?
Which of the following statements best describes a compound? A compound contains two or more different elements in a fixed ratio.
What does a compound contain?
A compound is a pure chemical substance made of two or more different chemical elements. They contain a fixed ratio of atoms, held together by chemical bonds. An atom is the basic building block of matter, containing protons and neutrons in a central nucleus, and electrons orbiting around the outside.
What are the type of compound?
Types of Compounds Covalent or molecular compounds form when elements share electrons in a covalent bond to form molecules. Molecular compounds are electrically neutral. Ionic compounds are (usually) formed when a metal reacts with a nonmetal (or a polyatomic ion).
What is a compound in Science Kid definition?
A compound is formed when two or more different elements are chemically bonded together.
What is a statement that something is true quizlet?
theorem. a statement or conjuncture that can be proven true by by undefined terms, definitions, and postulates. statement. any sentence that is either true or false, but not both. related conditionals.
Can a statement be true or false?
Definition: Statements are the kind of sentences that are either true or false.
When can we say that a statement is compound?
A com- bination of two or more simple statements is a compound statement. For example, “It is snowing, and I wish that I were out of doors, but I made the mistake of signing up for this course,” is a compound statement.
How a compound statement is formed?
A compound statement is one formed by joining other statements together with logical connectives. Several such connectives are defined below. The statements that are joined together can themselves be compound statements. Let p and q be statements.