Answer:
Total gram of Ca = 99.26 g
Explanation:
Given:
Mass of CaCl₂ = 277.45 g
Find:
Mass of Ca
Computation:
Ca = 40 g/mol
Cl₂ = 2 (35.5) g/mol = 71 g/mol
Total CaCl₂ = 111 g/mol
Total gram of Ca = [40 / 111] 277.45 g
Total gram of Ca = 99.26 g
Answer:
The answer is 39.99711. We assume you are converting between grams NaOH and mole. You can view more details on each measurement unit: molecular weight of NaOH or mol This compound is also known as Sodium Hydroxide.
Answer:
For CH3Br, there are a total of 14 valence electrons. Hydrogen always goes on the outside, and since Carbon is less electronegative than Bromine, we'll put the Carbon in the center and the Bromine on top. We have 14 valence electrons for the CH3Br Lewis structure. Put two between atoms to form chemical bonds.
Explanation:
Answer:
Calcite
Explanation:
Calcite, whose composition is CaCO3, has the amazing ability to fizz in contact with hydrochloric acid.
From the geological point of view, this test is commonly performed to differentiate calcite from other minerals of similar color, brightness and habit. Do not confuse calcite with aragonite that also reacts in this way against HCl.
On the other hand we can analyze this experiment from the chemical point of view, since the following chemical reaction takes place:
CaCO3 + 2HCl -> CaCl2 + H2O + CO2
The products of the reaction are released in liquid form (water with dissolved CaCl2), and in bubbles of carbon dioxide gas.
No a flame doesn't always give heat because sometimes fire can burn but it doesn't have heat
