9 A compound is a substance composed of two or more elements that are (3)(1)physically mixed in a fixed proportion(2) physically mixed in a variable proportion(3)chemically combined in a fixed proportion(4)chemically combined in a variable proportion 相关知识点: 试题来源: 解析 (3) ...
aA compound is a substance that can be split into two or more elements. Water is a compound because it can be split into its components, hydrogen and oxygen. 化合物是可以被分裂成两个或多个元素的物质。 因为它可以被分裂成它的组分、氢和氧气,水是化合物。 [translate] ...
• Add this info to your notes that you took from the last section. • Compound- A substance composed of two or more elements that are chemically bonded to form a new substance with different properties. • Example 1- Water. Water’s chemical formula is H2O. • Mixture- a combinati...
mixture- (chemistry) a substance consisting of two or more substances mixed together (not in fixed proportions and not with chemical bonding) atom- (physics and chemistry) the smallest component of an element having the chemical properties of the element ...
established theories on stages of sexual identity development agree on two important elements,identity comparisonor the resolution of feelings of isolation and alienation as the difference between self and non-gay/bisexual others become more clear andidentity prideor the development of positive feelings ...
Oxygen is one of the basic elements ofsubstance. 氧是物质的基本元素之一. 《简明英汉词典》 These two chemicals interact with each other at a certain temperature to produce asubstancewhich could cause an explosion. 这两种化学药品在一定温度下相互作用并产生一种引起爆炸的物质. ...
Blocks of Matter Matter may consist of elements, compounds, or mixtures. Element: a substance made of only one type of atom Compound: a substance made of two or more elements chemically bonded together. Mixture: a physical combination of two or more pure substances (i.e., elements or ...
An ionic bond is created when: a. a metallic element reacts with a nonmetallic element. b. two atoms share their bonding electrons equally. c. two atoms share their bonding electrons unequally. d. one atom gives one or more electron...
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Painting > Tool list > Path tool The Paint along Path or Path tool allows to create brush strokes via a curve defined by points on the surface of the 3D model.