Questions LLC
Login
or
Sign Up
Ask a New Question
Science
Physics
how do scientist know that the chemical elements here on earth are the same as on the planets in space and not some different elements
1 answer
By observing starlight, we know what elements are in the stars far beyond. The are the same as here.
You can
ask a new question
or
answer this question
.
Related Questions
In three sets Q, R and S, the following conditions are found.
In Q R ∩ there are 9 elements. In Q S ∩ there are 4 elements.
A mineral is a solid with a definite chemical composition. What does it consist of?(1 point)
Responses several elements or
Analyze the dominance of China in the hi-tech industry. What scarce resource is extracted from the Earth to support this
Use the chemical reaction to answer the question.
CaCO3→CO2+CaO A scientist heats 30 grams of calcium carbonate (CaCO3)
Unit 3 Periodic Table Remediation
Group 2 elements like Be, Mg, ... are called alkaline earth metals. They exhibit similar
Chemical Reactions Quick Check
1 of 51 of 5 Items Question Use the chemical reaction to answer the question.
When would a model be most beneficial to a scientist?
A. when a scientist wants to do a hands on experiment B. when a scientist
Analyze the dominance of China in the hi-tech industry. What scarce resource is extracted from the Earth to support this
Chemical Reactions Quick Check
Science 8 Q1 / Matter Interactions Use the chemical reaction to answer the question.
Chemical Reactions Quick Check
1 of 51 of 5 Items Question Use the chemical reaction to answer the question.