<span>One way to write a polynomial is in standard form. In order to write any polynomial in standard form, you look at the degree of each term. You then write each term in order of degree, from highest to lowest, left to write. First, look at the degrees for each term in the expression.</span> and in this way you will be able to write polynominal in standard form.
Answer:
A.
Explanation:
We know quite well that there are three states of matter. Solid,liquid and gaseous states.
While the gaseous states gives the highest freedom of movement, the solid state gives the least freedom of movement. Molecules and atoms of a solid are so tightly packed.
This makes them very dense as they are held together by strong intermolecular forces of attraction. These strong forces prevents the movement of the particles.
As these particles are strongly attracted towards each other, they tend to be incompressible.
Having a definite volume but not a definite shape.
Answer is: the discovery of sub atomic particles like electrons.
J. J. Thomson discovered the electron in 1897.
His "plum pudding" model (1904) suggested: the electrons are embedded in the positive charge.
With this model, he abandoned his earlier hypothesis (the atom was composed of immaterial vortices).
J.J. Thomson placed two oppositely charged electric plates around the cathode ray. He did experiments using different metals as electrode materials and found that the properties of the cathode ray remained constant no matter what cathode material he used.
Tomson concluded that atoms are divisible and that the corpuscles are their building blocks (atoms are made up of smaller particles).
<h2>The grams of the excess reactant that are left at the end of reaction is</h2><h2>= 1.2014 grams</h2>
<h3>calculation</h3>
find the moles of each reactant
moles = mass/molar mass
molar mass of Ga= 69.7 g/mol
molar mass of As= 74.9 g/mol
mole of Ga = 4 g÷69.7 g/mol=0.05739 moles
moles of As=5.50 g÷74.9 g/mol =0.07343 moles
0.05739 moles of Ga reacted completely with 0.05739 moles of As therefore As was in excess
Therefore the moles of As that did not react = 0.07343 - 0.05739=0.01604 moles
mass that did not react = moles that was left x molar mass of As
that is; 0.01604 x 74.9=1.2014 grams
