In ____________, electrons are gained by atoms and lost by others
Answers
the answer is ionic bonds
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Answers
(NH₄)₃PO₄ = 149.0 g/mol
Ca₃(PO₄)₂ = 310.17 g/mol
2 (NH₄)₃PO4 + 3 Ca(OH)₂= Ca₃(PO₄)₂ + 6 NH₄OH
2 * 149 g --------- 310.17 g
1.5 g -------------- ?
mass = 1.5 * 310.17 / 2 * 149
mass = 465.255 / 298
= 1.561 g of Ca₃(PO₄)₂
hope this helps!
Answers
p = kc.
We evaluate k = p/c and plug in the first set of conditions.
k = 795/0.0356 = 22,331
Then p = kc and solve for c
c = p/k = 2070/22,331 = 0.093
The mixing of solute in the solvent is called solubility. In a solution, there are two types of components, these components are solute and solvent.
- Solute - a component that presents in less amount.
- Solvent - a component that is present in a large amount.
According to the question, the torr is defined as the torr is a unit of pressure based on an absolute scale, defined as exactly 1/760 of a standard atmosphere.
The equation is
hence,
After solving the equation,
Hence, the solubility is 0.093.
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Answers
510.17 cm³ is the volume of Iron has a density of 7.86 g/cm3 (1 cm3=1 mL) and has a mass of 4.01 kg.
What is density?
Density is the amount of mass of a substance present per volume of the cubic centimeter and it is the ratio of the mass of a substance to the volume of the substance with a unit centimeter cube.
The Iron has a density of 7.86 g/cm³ and mass of 4.01 kg so,
mass in gram = 4.10 / 1000 = 0.041
Density = mass/volume
Substituting the value in the equation,
volume = 0.041 /7.86 g/cm³
volume = 510.17 cm³
Therefore, the volume of Iron has a density of 7.86 g/cm3 (1 cm3=1 mL) and has a mass of 4.01 kg is 510.17 cm³.
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4.01 x 1000 = 4010 g
Density = mass / volume
7.86 = 4010 / volume
Volume = 4010 / 7.86
Volume = 510.17 cm³
hope this helps!
B) kinetic energy.
C) potential energy.
D) chemical energy.
Answers
Answer:
A) entropy
Explanation:
Answers
Answer:
342.17 g/mol
Explanation:
Molecular formulas is the actual number of atoms of each element in the compound. Molecular mass is the sum of the mass of each element which is present in the molecular formula is multiplied by their subscript which appear in the molecular formula.
Given,
The formula is =
Mass from the formula = 2×Molar mass of Aluminium + 3×Molar mass of sulfur + 12×Molar mass of Oxygen
Molar mass of Aluminium = 27.00 g/mol
Molar mass of sulfur = 32.06 g/mol
Molar mass of Oxygen = 15.99 g/mol
So,
Mass from the formula = 2×27.00 + 3×32.06 + 12×15.99 g/mol ≅ 342.17 g/mol
The molar mass of is 342.17 g/mol. The correct answer is option C.
Molar mass is the mass of one mole of a substance. It is expressed in units of grams per mole (g/mol).
To calculate the molar mass of , we need to add up the atomic masses of all the atoms in one formula unit.
So, the molar mass of can be calculated as follows:
Molar mass = (2 × atomic mass of Al) + (3 × atomic mass of S) + (12 × atomic mass of O)
= (2 × 26.98 g/mol) + (3 × 32.07 g/mol) + (12 × 16.00 g/mol)
= 342.17 g/mol
Therefore, the answer is option C. 342.17 g/mol is the molar mass of .
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a. rills
b. drumlins
c. alluvian fans
d. kettle lakes