Anna wants to buy a one carat diamond. one carat equals 200 mg. if a diamond is 0.600 carat, what is the mass of the diamond in ounces? 1 kg=2.205 pounds 1 pound=16 ounces

The mass of the diamond is 7.056 × 10⁻³ oz.

No. of grams = 1 ct × (200 mg/1 ct) × (1 g/1000 mg) = 0.2 g

No. of pounds = 0.2 g × (1 kg/1000 g) × (2.205 lb/1 kg) = 4.410 × 10⁻⁴ lb

No. of ounces = 4.410 × 10⁻⁴ lb × (16 oz/1 lb) =  7.056 × 10⁻³ oz

a) the particles of the chair are strongly held together.

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.