What are the two classes of matter?
What are the two classes of matter?
Classifying Matter Matter can be classified into several categories. Two broad categories are mixtures and pure substances. A pure substance has a constant composition. All specimens of a pure substance have exactly the same makeup and properties.
What does being on your P’s and Q’s mean?
mind your manners
What is the meaning of the difference of P and Q?
Step-by-step explanation: “P or Q” MEANS EXACTLY THE SAME AS “Q or P”; the two compound sentences are true in exactly the same situations. If P is false, both parts of this “or” sentence are false, and thus the compound “or” sentence is false. Thus, “P or P” MEANS THE SAME THING AS “P”.
What is compound mean?
A compound is a substance formed when two or more chemical elements are chemically bonded together. The type of bonds holding elements together in a compound can vary: two common types are covalent bonds and ionic bonds.
How do electrons determine the chemical properties of an atom?
Electrons located in the outermost shell of the electron cloud are called “valence electrons” and have the highest energy. Valence electrons determine the chemical properties of an element, or how the valence electrons of one element are shared or traded with valence electrons of other elements to create new molecules.
What does P arrow Q mean in geometry?
Which of the following substance is an element?
Answer. oxygen is an element.
Which of the following is a property of an element?
Answer. These properties include color, density, melting point, boiling point, and thermal and electrical conductivity. While some of these properties are due chiefly to the electronic structure of the element, others are more closely related to properties of the nucleus, e.g., mass number.
What determines the chemical and electrical properties of an atom?
The number of electrons, in turn, determines the chemical properties of the atom. Protons contribute to the mass of an atom and provide the positive charge to the nucleus. The number of protons also determines the identity of the element. Electrons have a negative charge.
What is justify alignment in HTML?
align Attribute is used to specify the alignment of paragraph text content. Syntax:
align=”left | right | center | justify”> Attribute Values: left: It sets the text left-align. right: It sets the text right-align.
What is justified alignment in Word?
When you justify text in Word, you give your text straight edges on both sides of the paragraph. Justifying extends each line of your text to the left and right margins. Justifying text might make the last line of text in a paragraph considerably shorter than the other lines.
What does P and Q stand for in algebra?
The statement “p implies q” means that if p is true, then q must also be true.
What is the P Emoji?
The “P” is a mouth with the tongue sticking out. :P. Frustrated or Sticking Tongue Out. Facebook Frustrated or Sticking Tongue Out Emoticon. This emoticon can be used for expressing frustration, indicating tiredness, or just being silly.
Why do most of the elements try to participate in the chemical combinations?
To gain more electrons. To complete their octet. To complete their inner shells.
What is the meaning of p implies q?
Implication œ Conditional Statement. p → q (p implies q) (if p then q) is the proposition that is false when p is true and q is false and true otherwise.
Can false imply true?
False only implies true if the subject is binary (either 1 or 0). Since that doesn’t really happen in the real world, false does not imply true. In the expression, A => B, if A is False then the expression allows B to be either True or False. It doesn’t say what B should be if A is False!
What property of an element determines its chemical Behaviour?
Answer. Answer: Atomic number . The number of electrons and protons in an atom determines it’s chemical properties..
What are the two properties of an element?
These properties include color, density, melting point, boiling point, and thermal and electrical conductivity. While some of these properties are due chiefly to the electronic structure of the element, others are more closely related to properties of the nucleus, e.g., mass number.