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What is the main drawback of primary cell?
The chemical reaction that powers it can only run one way. Once the cell is discharged, its used up and becomes scrap.
How can you tell if there is sealer on your concrete?
Generally concrete that is sealed will repel water from absorbing into the substrate. In some cases concrete sealers are hard to detect as there may be old sealer resin still in the pores of the concrete (which may cause a negative chemical reaction or adhesion issues). A quick test would be to roll Xylene or Xylol on the surface for 2-5 minutes in a small area and see if there is a reaction (bubbling, pealing or the surface becomes sticky). If nothing happens there is a good chance there is no sealer or the old sealer is completely degraded. (customer service support at Foundation Armor)
In a dry cell the carbon rod releases electrons and becomes the positive or negative terminal?
In a dry cell, the carbon rod is the positive terminal, or anode.
What is a postfix expression?
The operator comes after the operands. E.g., 1 + 2 becomes 1 2 + while 1 + 2 + 3 becomes 1 2 3 + +.
What happens when wood rots?
It decomposes and becomes part of the ground.
When hydrogen is added to ch3ch2chchch3 the reaction is an?
... addition reaction; the hydrogen molecule is split, one of its atoms is added to each carbon atom that is initially double bonded, and an alkene becomes an alkane. --- ... known as hydrogenation.
When a molecule of nad plus gains a hydrogen atom to become nadh does the molecule become phosphorylated or oxidized or reduced or redoxed?
When a molecule of NAD+ gains a hydrogen atom to become NADH, the molecule is reduced. Reduction is the gain of electrons by a molecule, which is what occurs in this process. This is part of a redox (reduction-oxidation) reaction where one molecule is reduced (NAD+) and the other molecule is oxidized (loses electrons).
When a moleculeof NAD gains a hydrogen atom the molecule becomes?
NADH
What is additional reaction?
An addition reaction is when 1 molecule combines with another molecule and becomes 1 bigger molecule. There are no other products in this process; just the 2 molecules.
When a molecule of NAD gains a hydrogen atom the molecule becomes?
When a molecule of NAD gains a hydrogen atom, it becomes reduced to form NADH (nicotinamide adenine dinucleotide). This reduction reaction involves the transfer of electrons from the hydrogen atom to NAD, resulting in the formation of NADH.
When a molecule of nicotinamide adenine dinucleotide gains a hydrogen atom the molecule becomes?
When a molecule of nicotinamide adenine dinucleotide gains a hydrogen atom, it becomes NADH (reduced form of NAD+). NADH is a key molecule involved in carrying electrons during cellular respiration to generate ATP.
What is a addition reaction?
An addition reaction is a chemical reaction in which two or more reactants combine to form a single product. This type of reaction typically involves the addition of atoms or groups to a double or triple bond in a molecule.
How many electrons are gained in the half reaction?
In the half reaction where an oxygen molecule becomes into two oxide ions, it obtains 4 electrons from the oxidising substance.
When electrons are transferred from one molecule to another the molecule losing the electrons becomes and has a energy state?
When electrons are transferred from one molecule to another, the molecule losing the electrons becomes oxidized and typically has a higher energy state due to the loss of negatively charged particles. This process can result in the release of energy, as oxidation often occurs alongside a reduction reaction in the other molecule, which gains the electrons and becomes reduced. Consequently, the overall energy dynamics depend on the specific molecules involved and the context of the reaction.
What type of reaction can occur between a metal and an acid?
The reaction between an acid and a metal is an example of a single-replacement reaction.
Some hydrogen atoms replaced by atoms from the halogen family?
When hydrogen atoms are replaced by halogen atoms, the properties of the molecule can change significantly. Halogens are more electronegative than hydrogen, so the molecule becomes more polar. This can affect the molecule's reactivity and solubility in different solvents.
When the energy of sunlight moves to a chlorophyll molecule in a reaction center how does this impact an electron?
Electrons absorb the energy. Then it becomes exited
