Which elements can be found in a solar spectrum (meaning that the sun’s atmosphere must contain these elements)?

a. hydrogen only

b. helium only

c. hydrogen and helium only

d. carbon and oxygen only

e. many, many elements, ranging from light gases like hydrogen and helium to metals like iron, gold, and cromium

Option (e) is the correct answer.

Explanation:

A solar spectrum is defined as the range of electromagnetic energy emitted by the Sun. Range of this spectrum mainly lies in ultraviolet, infrared and visible region.

This spectrum is extending from 290 nm in longer wavelengths of UV region to over 3200 nm in the far infrared.

A solar spectrum consists of 67 elements and some of which are hydrogen (71%), helium (27%), oxygen, nitrogen and carbon are about 1.5% and the rest 0.5% contains iron, silicon, neon, magnesium and sulfur.

Therefore, we can conclude that many, many elements, ranging from light gases like hydrogen and helium to metals like iron, gold, and chromium can be found in a solar spectrum (meaning that the Sun’s atmosphere must contain these elements).

to make a supersaturated solution, make a saturated solution of sugar by adding 360 grams of sugar to 100 ml of water at 80 degrees celsius. when the water cools back down to 25 degrees, that 360 grams of sugar will still be dissolved even though the water should only dissolve 210 grams of sugar.

out of these options:

ability to burn paper

pure sodium reacting violently with water

the boiling point of water

helium does not tend to react with anything

i would say this is a physical property:

helium does not tend to react with anything

why? :

i said helium does not tend to react with anything because well, it reacts to ! but ability to burn paper, pure sodium reacting violently with water, & the boiling point of water are chemical or

physical properties: the properties of a substance that can be observed without changing the chemical makeup of the substance

chemical properties: properties of a substance relating to the chemical nature and reactivity of the substance