(a)Natural gas, which is mainly methane, is a fossil fuel.(i) What is meant by the term fuel?[1](ii) Name two other fossil fuels.[2](iii) Name a solid fuel which is not a fossil fuel.[1] 相关知识点: 试题来源: 解析 (a)(i) substance/ material/ compound/element/mixture (...
What is calcium's state of matter at room temperature? What substance exhibits metallic bonding in the solid state? What state of matter are substances with strong intermolecular bonds? What state of matter is dry ice? What elements can exist in all three states of matter? What is the electr...
What is the molecular formula if the molar mass is approximately 120 g/mol? What is the molecular weight of CO2? What is the molar mass of methane (CH4)? If the molar mass of a substance is 34.1 g/mol, what is the mass of 3.01 times10(24) molecules of the substance? A. 17.1 g...
In addition to 'element', 'mixture' and 'compound', another useful term is the word 'substance', which can be used to refer toeitheran elementora compound - butnotto a mixture becausea 'substance' always has a definite composition. ...
Methanesulfonamide, also known as Methanesulfonamide, is a white or gray crystalline substance at room temperature and pressure. It has a certain sol..
Basically, every substance that occurs in the atmosphere is environmentally relevant - because every substance influences other substances and entire ecosystems. In the case of methane, these influences are clearly noticeable: Firstly, on the positive side, because methane, like all greenhouse gases, ...
C1 Methane C1 Atlas (first cervical vertebra; common name) C1 Canoe (one person) C1 Capital One C1 Composition 1 (plastic explosive) C1 Capability 1 C1 Schedule I Controlled Substance (USA) C1 Cyclopentolate 1% Eyedrops C1 CPU State 1 (non-executing computing mode) Copyright 1988-2018 Acronym...
Question: What is a polar molecule? Types of Bonds: There are two main types of strong bonds that occur between molecules, covalent and ionic. Ionic bonds occur when one atom donates electrons to another. Covalent bonds occur when two atoms share electrons. ...
Molar mass is the mass of one mole of a substance. We determine the molar masses from values on the periodic table. Answer and Explanation: Before we can sum all of the molar mass of the elements in acetic acid we need the chemical formula of acetic acid. Acetic acid's chemical formula...
Seaweed is a sustainable packaging solution made from agar – a gelatinous substance found in many seaweeds and algae. The agar is extracted and dehydrated to produce a material appropriate for packaging. Being made from a plentiful, sustainable raw material, seaweed packaging could become one of...