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Learning Task No. 1: Presence and Absence of Oxygen
In investigating the changes that happen in materials under the condition
that there is presence or absence of oxygen, you will need the following
materials :
1 piece apple (eggplant or potato)
any vitamin C tablet
3 clear glass/bottle
500 ml or 2 glasses of water
Chopping board
knife
Note: Conduct an experiment in the kitchen or in an available place that is
safe to keep the experimental set up, clean, safe and manageable. Follow
the steps below.
Prepare the materials.
5
1. Label each glass with a marker or write in a paper Glass A-with water,
Glass B- with Vitamin C placed under each glass. This will help you
monitor which glass will undergo changes in color in the presence or
absence of oxygen. See the illustration below.
2
GLASS A-with water
GLASS B-with water + Vitamin C
tablet
IN
Answers
Answer:
the attach point of the attach is the right size of the attach to the attach point of the attach point of the attach point of it in a large circle and place the attachment to be a part of the board of a large piece 8PM that 8is the attach point of the board and place it on a large circle of a small hole.
Answer:
There are two types of cellular respiration: aerobic and anaerobic. One occurs in the presence of oxygen (aerobic), and one occurs in the absence of oxygen (anaerobic).
combustion, a chemical reaction between substances, usually including oxygen and usually accompanied by the generation of heat and light in the form of flame.
When a metal reacts with oxygen, a metal oxide forms. The general equation for this reaction is metal + oxygen → metal oxide. Rust is a form of iron oxide and it forms slowly when the iron is exposed to air. Iron can be transformed into steel (an alloy), which is more resistant to rust.
Heat makes many solids, especially metals, softer and easier to shape. As the temperature rises, most solids eventually melt into the liquid state.
oxygen is one of the most reactive elements:-
https://brainly.in/question/47788170
changes that happen in materials under the presence or lack of oxygen:-
https://brainly.in/question/48009754