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i think that it must reflect red light waves.
Ironalec
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What must happen to a substance to reach it's melting point?
Increasing the temperature up to the melting point.
What must happen for you to be able to observe an objects chemical properties?
only when a change occurs and a new substance is formed
If a chemically pure substance that cannot be broken down into smaller substances?
A chemically pure substance is a substance that cannot be separated expect by chemical means. For instance, water can be broken down by electrolysis into oxygen and hydrogen. Yet, it is still a pure substance because a chemical change must occur in order for this to happen.
What must a substance provide in order to be considered food?
it must provide energy
What must occur for a solution to form?
The correct answer is as follows: One Substance Must Dissolve In Another.
For a substance to appear white what must happen to all wavelength of light?
must be reflected
What substance to appear white what must happen to all wavelengths of light?
must be reflected
What must happen a substance to appear black what must happen to all wavelengths of light?
A substance that appears black (in a lighted room) is absorbing all of the visible light that hits it, leaving no visible light to reflect off of it to your eye. So it's absorbing visible light of all wavelengths. (You still don't know what's happening to the infra-red or ultraviolet hitting it. For that, you need to use different detectors.)
What must happen to form a solution?
one substance must dissolve in an other
For a substance to appear black and what must happen to all wavelengths of light?
A substance that appears black (in a lighted room) is absorbing all of the visible light that hits it, leaving no visible light to reflect off of it to your eye. So it's absorbing visible light of all wavelengths. (You still don't know what's happening to the infra-red or ultraviolet hitting it. For that, you need to use different detectors.)
What must happen to all wavelengths of light?
There a couple things that must happen to all wavelengths of light so that a substance can reflect white. The substance needs to be able to reflect each wavelength equally and the wavelengths must hit it at the same time.
What must happen for an astronaut to appear weightless?
He (or she) must float motionless and unattached to any object or cable.
What things must happen in order that a substance can be smelled?
For a human to smell a substance, The substance must be volatile, and molecules of it must be airborne and drift near the nose. The substance must come in contact with an olfactory nerve-ending in the nose. The olfactory nerve must react, by excitation, to the molecule, sending an electrical impulse to the brain. The brain must receive and process olfactory (smell) nerve signals.
What is a substance that makes it appear on the periodictable?
In order to appear on the periodic table a substance must be an element, consisting of only one type of atom with a given number of protons in its nucleus. This number, called atomic number, is unique to each element.
What must happen to a substance to reach it's melting point?
Increasing the temperature up to the melting point.
What must happen for you to be able. to observe an objects chemical properties?
only when a change occurs and a new substance is formed
What must happen for you to be able to observe an objects chemical properties?
only when a change occurs and a new substance is formed
