Answer: X is a Solid; Y is a Gas
Explanation:
There are three (3) states of matter. They are: Solid, Liquid and Gases.
Substance X and Y, belong to the states of matter.
A Solid is a substance that retains its SIZE and SHAPE without need of a container (as opposed to a liquid or gas).
Thus, it will most likely be concluded that: substance X is a Solid; while Y is a Gas
Magma is made of molten rock. Melted of molten rock. Answer is rock.
Solid (ice caps)
Liquid (oceans, rivers, lakes, etc)
Gas (clouds)
The number of sandwiches that can made with 6 pieces of bread and 4 slices of cheese is 3 sandwiches.
<h3>What are limiting reactants?</h3>
Limiting reactants are those reactants which determine the amount of product that can be formed since they get used up in a reaction.
In the making of sandwiches from bread and cheese, the limiting reactant is the material that is used up.
The formula for making a sandwich is given below;
2 pieces of bread + 1 slice of cheese = 1 sandwich
6 pieces of bread can make 3 sandwiches
4 slices of cheese can make 4 sandwiches
Thus, bread is the limiting reactant.
Therefore, the number of sandwiches that can made with 6 pieces of bread and 4 slices of cheese is 3 sandwiches.
Learn more about limiting reactants at: brainly.com/question/14225536
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Answer : The symbol of the element is Selenium (Se).
Explanation :
Electronic configuration is distribution of electrons in an atom in atomic orbitals.
The electronic configuration of [Kr] = 
Total number of electrons in [Kr] = 36
Due to -2 charge, 2 electrons are withdrawn from the electronic configuration of [Kr].
Now the total number of electrons left = 36 - 2 = 34
And the Selenium[Se] is the element which has 34 number of electrons.
Electronic configuration of [Se] = 
