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Which particles in an atom can increase or decrease in number without changing the identity of the element?
Neutrons
How do you decrease the number of molecules in a glass of water without changing the number of water molecules?
If the water is impure, you could remove the impurities. If the water is pure, it's impossible to decrease the number of molecules without changing the number of water molecules, which would be the only kind of molecules present in that case.
How can you increase the volume of a balloon without increasing the temperature?
Decrease the pressure of the surrounding environment. Thus, the force acting on the balloon from the outside decreases, allowing the air pressure that creates a force inside the balloon to have less of a counteracting force.
Why shouldn't sealed containers be heated without being punctured?
Sealed containers should not be heated without being punctured because the heat causes the contents to expand, leading to increased pressure inside the container. If the pressure exceeds the container's strength, it can result in an explosion, posing safety hazards such as burns or injuries from flying debris. Puncturing the container allows for the release of built-up pressure, making heating safer. Always prioritize safety when handling pressurized materials.
How do you change an object's density?
To change an object's density, you can change either its mass or volume. Increasing the mass or decreasing the volume will increase the density, while decreasing the mass or increasing the volume will decrease the density.
How can you decrease the pressure of gas in a container without changing the volume of the gas?
You could lower the temperature.
What 3 factors affect the pressure of a gas in a closed container?
The mass of the gass, the volume of the container holding the gas, and the temperature of the gass. If you have a container of gas, the greater the mass of the gas, the more molecules there are in the container, and this leads to greater pressure. If you have a fixed mass of gas, changing the volume of the container holding the gas will cause the pressure to change. Increasing the volume of the container decreases the pressure. Decreasing the volume of the container increases the pressure. If you increase the temperature of a gas without changing its mass or volume, pressure increases.
Imagine that bubbles begin to form a sample of liquid but the temperature did not change.what must have happened to cause this change?
The decrease in pressure caused the bubbles to form in the liquid sample without changing the temperature. This could occur, for example, if the liquid was moved to a region of lower pressure, releasing dissolved gases as bubbles.
Which particles in an atom can increase or decrease in number without changing the identity of the element?
Neutrons
In which direction in a fluid at rest can you move without the pressure changing?
You can move vertically (up and down) in a fluid at rest without the pressure changing, as long as the fluid is in equilibrium and there are no density variations.
What is an amount of pressure an object can handle without changing?
The amount of pressure an object can handle without changing is called its elastic limit. Beyond this point, the object will undergo permanent deformation or break.
How can granite change to metamorphic without changing into sedimentary?
Through heat and pressure
Rocks can melt without changing temperature when the pressure exerted on them is .?
Increase
Why the shape of the cylinder does not affect the measurement of volume?
A liquid takes up the shape of a container without its volume changing.
How could you change an object's volume with out changing its mass?
Changing an object's volume without changing its mass can be achieved by altering its density. This can be done by increasing or decreasing the spacing between its molecules or particles, without adding or removing any material. For example, compressing a gas would decrease its volume without changing its mass.
How do you decrease the number of molecules in a glass of water without changing the number of water molecules?
If the water is impure, you could remove the impurities. If the water is pure, it's impossible to decrease the number of molecules without changing the number of water molecules, which would be the only kind of molecules present in that case.
How could you change the volume of an object without changing the mass?
To change the volume of an object without changing the mass, you could alter its density by changing its component materials. For example, replacing a heavier material with a lighter one or adjusting the shape of the object to increase or decrease the volume while keeping the mass constant. Additionally, you could change the pressure or temperature surrounding the object which may lead to a change in volume without affecting mass.
