Answer:
Stroking a magnet across it or high voltage
Explanation:
Stroking a magnet across it causes the alignment of the domain, making it magnetic temporarily. Also, high voltages from batteries can make it magnetic too, doing the same thing.
K₂SO₄ + CaI₂ → CaSO₄ + KI
K: 2 K: 1
S: 1 S: 1
O: 4 O: 4
Ca: 1 Ca: 1
I: 2 I: 1
↓
K₂SO₄ + CaI₂ → CaSO₄ + 2KI
K: 2 K: 2
S: 1 S: 1
O: 4 O: 4
Ca: 1 Ca: 1
I: 2 I: 2
Answer:
the cells start to deteriorate
Explanation:
the lack of oxygen to your body and cells will cause them to break down.
Answer:
0.417 mol could be extracted from a medal that weighs 115 grams
Explanation:
Our Olympic medal weighs 115 g and we know that 71.5% is gold so how much from this medal is gold?
100 % ____ 115 g
71,5 % ____ 82.22 g
Molar mass of Au is 196.97 g/m
Mass / Molar mass = Moles
82.22 g / 196.97 g/m = 0.417 moles
Answer:
B
Explanation:
Water-Continental-Oceanic-Mantle