Answer:
Mass of reactant and mass of product must be equal.
Explanation:
Law of conservation of mass:
According to the law of conservation mass, mass can neither be created nor destroyed in a chemical equation.
Explanation:
This law was given by French chemist Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.
For example:
In given photosynthesis reaction:
6CO₂ + 6H₂O + energy → C₆H₁₂O₆ + 6O₂
there are six carbon atoms, eighteen oxygen atoms and twelve hydrogen atoms on the both side of equation so this reaction followed the law of conservation of mass.
Answer:
200 mL of water is needed to make up a 6.00% (m/v) solution of copper (II) sulphate when 12.0 g of it will be added to water.
Explanation:
The solution is the result of the mixture between the solute, which is the substance that dissolves, and the solvent, which is the substance in which a solute dissolves. That is, a solution (or solution) is a mixture of two or more components, perfectly homogeneous since each component is intimately mixed with the other.
The concentration of solutions is the amount of solute contained in a given amount of solvent or solution. A unit of concentration is the percent weight to volume.
The percent weight to volume is the percentage ratio between the weight of the solute and the volume of the solution. It is calculated as:
Mass is measured in grams, while volume is measured in mL.
In this case:
- Percent weight to volume= 6%
- mass of solute= 12 g
- volue of solution= ?
Replacing:
Solving:
volume of solution*6= 12 g*100
volume of solution= 200 mL
<u><em>200 mL of water is needed to make up a 6.00% (m/v) solution of copper (II) sulphate when 12.0 g of it will be added to water</em></u>
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One of the basic building blocks of matter, which cannot be broken down by chemical means is an element.
The first chemical element is hydrogen (atomic number is 1) and the last is oganesson (atomic number is 118).
Elements are scheduled in Periodic table, ordered by their atomic number.
Other example, krypton is a chemical element with symbol Kr and atomic number 36.
Krypton has 36 electron and 36. It is noble gas (group 18).
Noble gases are in group 18: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe) and radon (Rn). They have very low chemical reactivity.
More about chemical element: brainly.com/question/28376204
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Here is what I found for you:
All minerals are solid, inorganic, naturally occurring and has a definite chemical composition<span> and </span><span>crystalline structure</span>
Applying the conservation of mass:
Mass during bombardment:
242 (curium atom) + 4 (alpha particle)
= 246
This must equal the mass after bombardment:
1 (neutron) + x (unknown product)
246 = 1 + x
x = 245
The product is Californium-245