Is filtered water a pure or impure substance? Water is a pure substance because it only contains one type of molecule. Pure water contains only molecules that are a combination of one oxygen atom… Is oxygen pure or impure? Air is a mixture of gasses, including nitrogen, oxygen, carbon dioxide and water vapour, as such […]
What are the disadvantages of Daylight Savings Time?
What are the disadvantages of Daylight Savings Time? 1. Changing the time, even if it is only by an hour, disrupts our body clocks and rhythm. According to officials, the lack of sleep at the start of DST has lead to car accidents, workplace injuries, suicide and miscarriages. The risk of suffering a heart attack […]
How are electric charges created?
How are electric charges created? A. Electrons can be removed from atoms and accumulated to produce a negative charge. Atoms from which electrons have been removed produce positive electric charge. … What is range of electric force? The electric force is operative between charges down to distances of at least 10-16 metre, or approximately one-tenth […]
What type of microscope do doctors use?
What type of microscope do doctors use? Electron microscopes use concentrated beams of electrons and dyes to illuminate their specimens. These electron beams have very short wavelengths, which means they are able to produce exceptionally high-resolution images. Clinics can utilize these scopes to identify and examine viruses within the bloodstream. How can a microscope be […]
What is the difference solution and suspension?
What is the difference solution and suspension? 1. Solutions are mixtures that are homogeneous while suspensions are mixtures that are heterogeneous. 2. The particles of a solution are at the ion or molecular level and cannot be seen by the naked eye while the particles of a suspension can be seen by the naked eye. […]
Why are steam burns more serious than burns caused by an equal amount of equally hot water?
Why are steam burns more serious than burns caused by an equal amount of equally hot water? Steam is more likely to cause burn injuries than boiling water because of the latent heat of vaporization. Since water expands to approximately 1,600 times its volume when it turns from liquid to steam, steam often escapes its […]
How Does drinking water help your joints?
How Does drinking water help your joints? Water helps to keep your joints lubricated and flexible; the Synovial fluid that directly lubricates your joints is made up primarily of water. This fluid reduces the friction between joints and helps to maintain healthy tissue and joints. Can drinking more water help arthritis? If there’s a magical […]
What happens when the air temperature and the dew point are very far apart?
What causes the attractive forces between particles in matter?
What causes the attractive forces between particles in matter? The particles that make up some matter are close together and vibrate back and forth. If the motion of particles slows the particles move closer together. This is because the attraction between them pulls them toward each other. Strong attractive forces hold particles close together. What […]
Is there a natural law?
Is there a natural law? Natural law holds that there are universal moral standards that are inherent in humankind throughout all time, and these standards should form the basis of a just society. Human beings are not taught natural law per se, but rather we “discover” it by consistently making choices for good instead of […]