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Oxidation (rusting)
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∙ 12y ago
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Are most chemical changes seen or not seen?
Most chemical changes happen between molecules, so they are unseen.
Chemical changes in the structure shown are most likely to happen during?
Exposure to mutagenic agents
What chemical change can happen to a metal chair if it left outside in the air and rain?
The metal will rust.
What are the different changes around us?
Changes occur everywhere, every moment around us. Everything in the world is subject to change. There are five types of changes. 1. Chemical and physical changes. 2. Reversible and irreversible changes. 3. Desirable and undesirable changes. 4. Periodic and non-periodic changes. 5. Slow and fast changes. Chemical changes: That change the chemical composition of the material. Physical change: That are temporary and do not change the chemical composition of the material. They change only the state, colour, and texture. Reversible chages: They can be reversed. Irreversible changes: They cannot be reversed. Desirable changes: Which are desired Undeirable changes: Which are'nt desired. Periodic changes: Which happen after a regular intervals. Non-periodic changes: Which happen irregular of any specific interval time. Slow changs: Which take a long time to occur. Fast changes: Which happen quickly. -Param Gupta, Std. 6, Victorious Kidss Educares
When does chemical change happen on a flashlight to produce electricity?
It happens when you turn on the flashlight and a circuit is created through the batteries, through the light filament, back down the outside of the batteries to the end of the batteries, etc. Switching off the flashlight breaks the circuit, curtails the chemical reaction in the batteries, and the light goes out.
What are chemical changes in chocolate?
It contains sugar which causes you to gain weight
Where chemical reaction happen in a cell?
Chemical changes happen everywhere in a cell. Cells are chemical engines, everything they do is based on chemical reactions.
Are most chemical changes seen or not seen?
Most chemical changes happen between molecules, so they are unseen.
The purpose of the cytoplasm is to?
Is where the chemical changes of the cell happen
Where in the plant cell do chemical changes happen?
Cytoplasm
Is a fire a physical or chemical change?
A fire is a chemical change due to the irreversible changes that happen.
What is one way that a chemical change can happen in a household?
Cooking involves chemical changes.
What are examples of chemical changes that happen in your environment?
volcanic eruption
What chemical reactions will happen if you connect galvinized copper and brass metal pipes?
There is no chemical reaction that will happen if galvanized pipes are connected to copper pipes via a brass intermediary. The reason is that brass does not react to either copper or zinc, the mineral used to galvanize metal pipes.
Can you recognize the chemical and physical changes that happen all around us?
The majority of these changes are recognized.
What are some chemical reactions and changes that happen when cleaning pennies?
something
What energy changes happen when you light candles on a cake?
chemical energy
