Move the decimal<span> so there is one non-zero digit to the left of the </span>decimal<span> point. The number of </span>decimal<span>places you move will be the exponent on the 10 . If the </span>decimal<span> is being moved to the right, the exponent will be negative. If the </span>decimal<span> is being moved to the left, the exponent will be positive.</span>
We would most likely use a model for an atom, which shows the nucleus, particles, and the electrons + orbitals
Answer:
$182 is the value of the gold in the coin
Explanation:
Diameter is 2r, the ratio of the coin is = 1.62cm / 2 = 0.81cm
Following the formula of the volume of the coin:
V = π r² h
V = π*(0.81cm)²*0.085cm
V = 0.172cm³ = mL
As the density of the gold is 19.32g/mL, the mass of 0.1752mL of gold is:
0.1752mL * (19.32g / mL) =
3.385g is the mass of the coin
As the price of the gold is $53.90 / g, the value of the gold in the coin is:
3.385g * ($53.90 / g) =
<h3>$182 is the value of the gold in the coin</h3>
Cobalt(II) has a charge of 2+
Phosphate has a charge of 3-
Because it's an ionic compound, you will need to take the charge and make them subscripts.
The formula for cobalt(II) phosphate is
Co₃(PO₄)₂
Your answer is
