Answer:
a nonmetal is a chemical element that is mechanically weak in its most stable form, brittle if solid, and usually gains or shares electrons in chemical reactions.
Hey there!
Kinetic energy means that something is in motion.
Therefore, the answer would be B. Bird in flight because it’s the only choice that suggests is moving.
Hope this helps!
God bless ❤️
xXxGolferGirlxXx
Answer:
up down up down thats the pattern
Explanation:
Answer:
A. 20.866%
Explanation:
First, we calculate molar mass of Li3PO3
Molar mass of Li3PO3 = 6.9 (3) + 31 + 16(3)
= 20.7 + 31 + 48
= 99.7g/mol
To calculate the percent composition of Lithium, we say:
Mass of lithium in compound/mass of compound × 100
% composition = 20.7/99.7 × 100
= 0.208 × 100
= 20.8%.
Answer:
0.373 moles of ammonium carbonate
Explanation:
To solve this question we must find the molar mass of ammonium carbonate. With the molar mass and the mass we can find its moles, as follows:
(NH₄)₂CO₃ contains: 2 moles N, 8 moles H, 1 mole C, 3 moles O. Molar mass:
2N = 14.0g/mol*2 = 28.0
8H = 1.0g/mol*8 = 8.0
1C = 12.0g/mol*1 = 12.0
3O = 16.0g/mol*3 = 48.0
Molar mass: 28.0 + 8.0 + 12.0 + 48.0 = 96.0g/mol
The moles of ammonium carbonate in 35.8g are:
35.8g * (1mol / 96.0g) =
<h3>0.373 moles of ammonium carbonate</h3>
