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When a piece of copper is heated in presence of air its weight?
When a piece of copper is heated in the presence of air, it can react with oxygen to form copper oxide. This can result in an increase in weight due to the addition of oxygen atoms from the air to the copper atoms.
Is the presence of air necessary for the formation of rust?
Yes, rust is result of combustion and combustion is burning in air. Consequently it is necessary.
How do you test oxygen gas during an experiment?
You can test for the presence of oxygen gas by using a glowing splint test. A glowing splint will reignite in the presence of oxygen. Alternatively, you can use a chemical reaction like the decomposition of hydrogen peroxide, which produces oxygen gas bubbles. Additionally, you can use an oxygen gas sensor to directly measure the presence of oxygen in the air.
What component of air which is need for combustion?
Oxygen is the component of air needed for combustion to occur. It reacts with the fuel in the presence of heat to produce energy in the form of heat and light.
What black substance form when copper reacts with oxygen?
Copper oxide, a black substance, forms when copper reacts with oxygen in the presence of air.
How you can show the presence of air in a bottle that looks empty?
One way to show the presence of air in a seemingly empty bottle is to place a lit match into the bottle and quickly seal it shut. The match will extinguish due to lack of oxygen, indicating that the air in the bottle contains oxygen. Alternatively, you can shake the bottle vigorously and observe any condensation that forms inside, indicating the presence of moisture in the air.
When a piece of copper is heated in presence of air its weight?
When a piece of copper is heated in the presence of air, it can react with oxygen to form copper oxide. This can result in an increase in weight due to the addition of oxygen atoms from the air to the copper atoms.
How can you prove the presence of diffused air in fresh water?
One way to prove the presence of diffused air in fresh water is by observing small air bubbles rising to the surface of the water. Additionally, you can conduct a dissolved oxygen test using a water testing kit to measure the concentration of oxygen in the water, which indicates the presence of diffused air. Another method is to measure the water's oxygen saturation level, with higher levels indicating the presence of diffused air.
How will you prove the presence of diffused air in water?
One way to prove the presence of diffused air in water is by observing the formation of bubbles when the water is agitated or heated. Another method is to measure the dissolved oxygen levels in the water using a dissolved oxygen meter, as air typically contains oxygen gas.
How will you show by experiment that air is present?
One way to demonstrate the presence of air is to create a vacuum inside a closed container and observe that a vacuum pump is required to remove the air. Another method is to perform the candle jar experiment, where a lit candle placed in a jar is extinguished due to the depletion of oxygen, showing the presence of air. Alternatively, using a balloon over the mouth of a bottle containing baking soda and vinegar can show the production of gas (carbon dioxide) as a result of the chemical reaction, indicating air's presence.
Is the presence of air necessary for the formation of rust?
Yes, rust is result of combustion and combustion is burning in air. Consequently it is necessary.
How do you test oxygen gas during an experiment?
You can test for the presence of oxygen gas by using a glowing splint test. A glowing splint will reignite in the presence of oxygen. Alternatively, you can use a chemical reaction like the decomposition of hydrogen peroxide, which produces oxygen gas bubbles. Additionally, you can use an oxygen gas sensor to directly measure the presence of oxygen in the air.
When iron oxide is made does the iron take the oxygen out of the water or out of the air?
Iron oxide is typically formed by the reaction of iron with oxygen in the air, not water. Iron reacts with oxygen in the presence of air to form iron oxide. Water does not play a significant role in the formation of iron oxide in this context.
What component of air which is need for combustion?
Oxygen is the component of air needed for combustion to occur. It reacts with the fuel in the presence of heat to produce energy in the form of heat and light.
What is fruit oxidation?
-Waves
What black substance form when copper reacts with oxygen?
Copper oxide, a black substance, forms when copper reacts with oxygen in the presence of air.
How do you think ingenhousz showed that it was dephlogisticated and not fixed air?
Ingenhousz demonstrated that oxygen (dephlogisticated air) was produced during photosynthesis by showing that plants release this gas in the presence of light. This was different from fixed air (carbon dioxide) because plants were observed to only release oxygen in the light, suggesting a direct relationship between the presence of light and the production of oxygen.
