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Astronomers are able to identify chemicals in distant space with the use of spectral analysis. This breaks the light apart into a spectrum and find either emission lines or absorption lines and identifies which elements are present.

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How can you tell type of silver in a spoon?

You look at the tiny markers stamped into each silver object. These have codes indicating purity and often also indicating where and when the object was made and sometimes, by which silversmith. If you don't find any markers, the object is not made of silver.


How can you tell if something is made out of copper?

You can tell if something is made out of copper by its reddish-brown color and its high conductivity of electricity and heat. Additionally, copper is non-magnetic and is softer and more malleable than other metals like iron or steel.


How can you tell if something is made of gold?

First you must determine the volume of the gold object. This can be done by using a container with water that is on a scale. The weight of the container and water has to to be recorded or the scaled "zeroed out" with the water and container on it. Next you suspend the gold object with a fine thread in the water. For simplicity it is better to use grams for weight and cubic centimeters (1 cc= milliliter) for volume. The difference of weight caused by the suspended gold is equal to the weight of water with the same volume as the gold object. Since one cubic centimeter of water weighs one gram this ralationship allows for conversion from weight directly to volume. Now that you know the volume of the object you need to multiply it by the density of gold, 19.3 grams per cc. Now put the gold object on the scale and see how much it weighs. The calculated answer and the scale reading should be the same if it is made of gold.


How do you tell if necklace is crystal?

I can't tell if you mean "crystal" as in "made of a crystalline material" or "crystal" as in "made of lead crystal, which is not technically a crystal at all". Take it to a jeweler. There's not any simple foolproof way a layman could tell.


What chemical is made when hydrogen burns?

When hydrogen burns, it combines with oxygen to form water (H2O).

Related Questions

Can astronomers tell what a distant object is made of?

spectrocity...absorption of select frequency of light ie spectrocity


How can astronomers tell what a distant object's temperature is?

blah blah black sheep


How can astronomers tell what a distant object's velocity?

By using the habo space telescle to detect the object's velocity


What can a stars spectrum tell astronomers about a star?

What elements the star is made of.


What does a red shift tell astronomers about stars or galaxies?

A red shift in the light emitted by a star or galaxy indicates that it is moving away from us. By measuring the amount of red shift, astronomers can determine the speed at which the object is receding and use this information to study the expansion of the universe and the distance to the object.


How do you know what comets are made of?

Astronomers analyze the light reflected from comets with a machine, and can easily tell what major elements it is composed of.


What does analysis of colors tell astronomers about objects in space?

Analysis of colors from objects in space can help astronomers determine the object's temperature, composition, and age. Different colors indicate different chemical elements present in the object, as well as its evolutionary stage. By studying the colors, astronomers can gain valuable insights into the physical properties and processes occurring in space.


What does a red shift tell astronomers about the movement of an object?

A red shift indicates that an object is moving away from the observer. This is a result of the Doppler effect, where light waves are stretched as an object moves away, causing them to shift towards the red end of the spectrum. Astronomers can use red shifts to determine the speed and direction of an object's movement.


How do you tell if lover wants it over?

They get distant, but you have to see it.


What can a stars spectrum can tell astronomers?

What makes up the star or element.


How can astronomers tell how much objects in space weigh?

Weight is due to gravitational forces between two objects. A single object inspace without another one reasonably nearby, or even in gravitational free-falltoward another object, is weightless. So you can not weigh an object in space.Determining the mass of objects in space is another matter.


Who can tell you about meteors?

The people you should ask are called astronomers who study astronomy.