Answer:
B.electrostatic repulsion by gold nuclei
Explanation:
According to Rutherford's experiment, a thin gold foil was bombarded with alpha particles. Some of the particles passed through the foil undeviated, some were scattered through large angles while some bounced backwards.
It follows that the particles that bounced backwards must have encountered a massive particle of like charge.
The atom is composed of a nucleus which contains positively charged particles. Some of the alpha particles which are positively charged particles bounced back when they encountered the positively charged particles in the nucleus.
The Ksp of AgOH will be 1.98×10⁻⁸
According to the question,
The chemical reaction is:
AgOH (aq) + HCl (aq) ---> AgCl (s) + H₂O (aq)
Now, acc. to the formula:
C₁V₁ = C₂V₂
(AgOH) (HCl)
By substituting the values, we get:
C₁ x 250 ml = 0.0136 x 2.60 ml
C₁ = 0.000141
Now:
AgOH → Ag⁺(s) + OH⁻(s)
Hence,
Ksp will be:
= s²
= (0.000141)²
= 1.98x10⁻⁸
<h3><u>The value of Ksp(Solubility product constant)</u></h3>
When a chemical substance in the solid form is in chemical equilibrium with a solution of that molecule, a solubility equilibrium is a sort of dynamic equilibrium that develops. The solid may dissolve chemically reacting with another component of the solution, such as acid or alkali, or dissolving unaltered.
To know more about solubility constant, refer to:
brainly.com/question/1419865
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6.060 has 4 significant figures including the zero after the decimal and the zero between non-zeros. 60.6 has 3 significant figures while 606 has also 3 significant figures. 60600 has 3 significant figures. Thus, the number with the greatest number of significant figures is 6.060.
To answer this question, you need to know how to convert milliliters into liter then into a gallon. In this question, you are given the gasoline density (0.737g/ml) and the volume (12.8gallon). The information is enough to determine the gas weight. The calculation would be:
Gas weight= density * volume
Gas weight= 0.737g/ml * 12.8 gal * 3.78L/gal * 1000ml/L= 35659.008 grams
Answer:
The correct answer is D Air molecules touch the warm ground, heating them up.
Explanation:
There are three types of thermal energy: Conduction, convection, and radiation. Conduction is the process in which energy (also known as heat) is transferred from one object to another by directly touching each other (solids touching solids). Convection is the process in which energy is circulated through the movement of fluids (like liquids or gases), by hot air rising and cool air sinking. Radiation is the process in which energy is transferred from one place to another by electromagnetic waves. An example of this would be feeling warm after being outside in the sun; such as choice B, which is hence incorrect. Choice A is a rephrasing of choice C; both of which are considered convection because air is not a solid, but a gas and this air is <em>rising </em>and<em> sinking</em>. This leaves us with choice D. Choice D would be considered conduction because the air molecules are <em>touching</em> the ground; therefore, being heated <em>directly</em>.
Hope this helps,
❤<em>A.W.E.</em><u><em>S.W.A.N.</em></u>❤