Answer:
Atoms were impenetrably hard, meaning they could not be divided. In Greek, the prefix "a" means "not" and the word "tomos" means cut. Our word atom therefore comes from atomos, a Greek word meaning uncuttable.
Answer:
No
Explanation:
The equation does not obey the law of conservation of mass by not accounting to the total number of Chlorine in the products.
Law of conservation of mass states that in ordinary chemical reactions, matter can neither be created nor destroyed but can be converted from one form to another.
The equation presented was
CuCl₂ + Na₂S → CuS + NaCl
1. The total number of copper in the reactant is equal to number of Cu in product
2. Numbe of Chlorine in the reactant is 2 while in the product is just 1. Not accounted for.
3. Number of sodium on the reactant is not equal to number of sodium on the product I.e 2 on the reactant and just 1 on the product.
4. Number of sulfur on the reactant is equal to number of sodium on the product.
Correct chemical equation
CuCl₂ + Na₂S → CuS + 2NaCl
Answer:
b) the metals strips
Explanation:
In an experimental design, an independent variable is a variable that is changed or manipulated in a series of experiments. An independent variable is not dependent on any other variable in the experiment. The hypothesis for this experiment is stated to be: "If the chemical activity of the metallic wrapper is increased, then less rusting of iron will occur. The independent variable relates to the type of metal wrapping strip, and the dependent variables are the amount of rusting and color of the water.
Answer:
Sodium has 11 protons and Magnesium has 12. The way that the periodic table is set up doesn't allow for any elements to be in between. The element would have to have 11.5 protons, which is impossible
