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( )is a simple compound of two atoms of hydrogen and one atom of oxygen.
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2024-04-18 20:04:27
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相关试题
1.
( )is a simple compound of two atoms of hydrogen and one atom of oxygen. 选项: A:Protein; B:Water; C:Fat; D:Vitamin
2.
A chemical compound that contains two atoms of oxygen and one atom of another chemical element is called ______
3.
A chemical compound that contains two atoms of oxygen and one atom of another chemical element is called ______选项: A:teroxide B:dihydrogen C:dioxide D:monoxide
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A chemical compound that contains two atoms of oxygen and one atom of another chemical element is called ______ 选项: A:teroxide B:dihydrogen C:dioxide D:monoxide
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6.
A covalent bond between two atoms is formed as a result of the ______________. 选项: A、sharing of electrons. B、loss of electrons from both atoms. C、loss of a proton from one atom. D、transfer of electrons from one atom to the other.
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If one or both of the hydrogen atoms on the amide nitrogen atom are replaced by hydrocarbon groups, the structure is named as an N-substituted amide.选项: A:对 B:错
8.
An ionic bond is formed when electrons are donated by one atom to another, whereas a________ bond is formed when two atoms share a pair of electrons.
9.
The element immediately following hydrogen is helium, the atom which contains two electrons.
10.
The element immediately following hydrogen is helium, the atom which contains two electrons.?
11.
The element immediately following hydrogen is helium, the atom which contains two electrons.
12.
The element immediately following hydrogen is helium, the atom ____1____which contains two electrons.
13.
The element immediately following hydrogen is helium, the atom _ which contains two electrons.A.throughB.withC.atD.toE.of
14.
The element immediately following hydrogen is helium, the atom _ which contains two electrons.A.throughB.withC.atD.toE.of
15.
The element immediately following hydrogen is helium, the atom ____ which contains two electrons. 选项:A、through B、with atD、to E、of
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The element immediately following hydrogen is helium, the atom ____ which contains two electrons. 选项:A、through B、with atD、to E、of
17.
The element immediately following hydrogen is helium, the atom ____ which contains two electrons. A: at B: with C: through D: of E: to
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The element immediately following hydrogen is helium, the atom ____ which contains two electrons. 选项: A:through B:with C:at D:to E:of
20.
The element immediately following hydrogen is helium, the atom ____ which contains two electrons.选项: A:through B:with C:at D:to E:of
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Some elements are known the atoms of which usually do not combine with more than one atom of any other element.
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