Answer:
pharynx esophagus peristalsis chyme
Explanation:
Answer:
The top number is the total mass number, particles in an atom of an element that have mass are protons and neutrons.
Explanation:
Answer:
a. neutron
Explanation:
A neutral atom has the same number of protons and electrons because in order for it to be a neutral atom the charges must be the same.
a neutron has no charge therefore it can be different then the number of protons and electrons in a neutral atom as it won't affect the charge.
When the salt AgI dissolves in water it dissociates as follows;
AgI ---> Ag⁺ + I⁻
molar solubility is the number of moles that are dissolved in 1 L of solution.
If molar solubility of AgI is x, then molar solubility of Ag⁺ is x and I⁻ is x.
the formula for solubility product constant - ksp of AgI is given below
ksp = [Ag⁺][I⁻]
ksp = (x)(x)
ksp = 8.51 x 10⁻¹⁷
therefore,
x² = 8.51 x 10⁻¹⁷
x = 9.22 x 10⁻⁹
since molar solubility of AgI is x, then molar solubility of AgI is 9.22 x 10⁻⁹ M
61g/mol
Explanation:
The empirical formula of compound is its simplest formula. It shows the simplest ratio by which the atoms are combined.
In the formula C₄H₁₀O₄
we have:
4 moles of carbon 10 moles of hydrogen 4 moles of Oxygen;
4 : 10 : 4
The simplest ratio can be obtained by dividing through by the highest common factor which is 2;
4/2 10/2 4/2
2 5 2
the empirical formula is C₂H₅O₂
The formula mass is the sum of the atomic weights;
C₂H₅O₂ = (2 x 12) + (5x1) + (2x 16) = 24 + 5 + 32 = 61g/mol
learn more:
Molar mass brainly.com/question/2861244
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