An Arrhenius base is a substance that are being dissolves in water dissociate and gives Hydroxide ions. (OH⁻)
Answer:
The answer is 2Fe(No3)3 + 3Na2CO3 -> Fe2(CO3)3 + 6NaNO3 .
Explanation:
Fe(lll) represents <em>I</em><em>r</em><em>o</em><em>n</em><em> </em><em>(</em><em>l</em><em>l</em><em>l</em><em>)</em><em> </em><em>i</em><em>o</em><em>n</em><em>s</em><em> </em><em>.</em>
NO3 represents<em> </em><em>N</em><em>i</em><em>t</em><em>r</em><em>a</em><em>t</em><em>e</em><em> </em><em>i</em><em>o</em><em>n</em><em>s</em><em> </em><em>.</em>
Na represents<em> </em><em>S</em><em>o</em><em>d</em><em>i</em><em>u</em><em>m</em><em> </em><em>i</em><em>o</em><em>n</em><em>s</em><em> </em><em>.</em>
CO3 represents<em> </em><em>C</em><em>a</em><em>r</em><em>b</em><em>o</em><em>n</em><em>a</em><em>t</em><em>e</em><em> </em><em>i</em><em>o</em><em>n</em><em>s</em><em>.</em>
Answer:
A. Atoms randomly crashing into each other
E. The force of one object pushing against the force of another object.
Explanation:
Forces can be classified into two categories based upon the the mode of transfer or application:
1. Contact forces
2. Non-contact forces
Contact forces are the ones which require the physical contact of the matter to get transferred and tend to create the affect. Whereas non-contact forces have the field property which transfers the affect of force from one point to another without any physical contact of the matter or the medium.
- Atoms crashing onto each other have some mass and velocity which upon collision impacts the other atoms exerts a contact force.
- The interaction between the charged particles due to their charges is always due to the electric field be it electron or proton, be it within an atom or out of an atom.
- The force between any two objects pushing or pulling each other is also possible only due to contact.
Answer:
<h2>The answer is 334 g</h2>
Explanation:
The mass of a substance when given the density and volume can be found by using the formula
<h3>mass = Density × volume</h3>
From the question
volume of ethanol = 423 cm³
density = 0.789 g/cm³
So we have
mass = 0.789 × 423 = 333.747
We have the final answer as
<h3>334 g</h3>
Hope this helps you