Answer:
sorry i cant give the answer but you can gi end check in answer sheet of this becoz i had same question in exam in chemistry so i revised then i checked the answer if you want to check answer go to www.coachscotchemistry.com there you xan find the answer
Answer:
45) Ca < Co < Se
46) Te < S < O
Explanation:
These questions are talking about periodic trends. Here are some things to know about periodic trends:
Electronegativity
- how well an element attracts an electron
- increases left to right and bottom to top on the periodic table
- noble gases are not included
- fluorine is most electronegative element, Francium is least
Atomic Radius
- the distance between nuclei
- increases from right to left and top to bottom on the periodic table
- the more electronegative an element is, the smaller it's atomic radius
- Francium has the largest atomic radius while fluorine has the smallest
Ionization Energy
- the energy required to remove an electron
- directly proportional to electronegativity
Metallic Character
- how closely an element's properties match those of a metal
- directly proportional with atomic radius
Hope this helps :)
Answer: 8.33 mol of HCl (Hydrochloric Acid)
Explanation:
150 g H2O x __1 mol__ x __1 mol HCl__ = 8.33 mol of HCl
18.016 g 1 mol H2O
Answer:
<h2>mass = 1102.50 g</h2>
Explanation:
The density of a substance can be found by using the formula
Making mass the subject we have
<h3>mass = Density × volume</h3>
From the question
Density of silver = 10.50 g/cm³
Volume = 105 cm³
Substitute the values into the above formula and solve for the mass
That's
mass = 10.5 × 105
We have the final answer as
mass = 1102.50 g
Hope this helps you
