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What chemical element is needed for combustion reactions?
oxygen
What do all single-replacement reactions begin with?
All single-replacement reactions begin with a compound and a free element. In these reactions, the free element displaces one of the elements in the compound, resulting in a new compound and a different free element. The general form of a single-replacement reaction can be represented as A + BC → AC + B, where A is the free element and BC is the compound.
Which is the element responsible for chemical weathering of rocks?
chemical reactions
What is the modern source of the roentgenium element?
Roentgenium is an artificial element, obtained via nuclear reactions in particle accelerators.
What element is used in chemical reactions that gives your body energy?
The answer is oxygen
Atoms of one element change in to atoms of another element during chemical reactions?
During chemical reactions atoms remain unchanged.
What is half reactions?
oxidation or reduction of an element
How many types of single-replacement reactions ar there?
There are three main types of single‐replacement reactions: metal‐displacement reactions, halogen‐displacement reactions, and nonmetal‐displacement reactions. Each type involves the substitution of one element in a compound by another element.
What chemical element is needed for combustion reactions?
oxygen
What are the occurrences of the element nobelium?
Nobelium is an artificial element; it is prepared only by nuclear reactions in accelerators.
What do all single-replacement reactions begin with?
All single-replacement reactions begin with a compound and a free element. In these reactions, the free element displaces one of the elements in the compound, resulting in a new compound and a different free element. The general form of a single-replacement reaction can be represented as A + BC → AC + B, where A is the free element and BC is the compound.
What type of reaction cannot involve a free element as a reactant?
A Decomposition Reaction, Single Replacement Reactions, Double Replacement Reactions and Combustion Reactions...
An element that speeds up chemical reactions is called?
Enzyme
What is the element in the periodic table that is not participate in the chemical reactions?
yes
Which is the element responsible for chemical weathering of rocks?
chemical reactions
What is the modern source of the roentgenium element?
Roentgenium is an artificial element, obtained via nuclear reactions in particle accelerators.
How can chemical reactions be used to separate important element?
For example, water reacts with zinc, releasing hydrogen, an element.
