80% of earthquakes occur along the rim of the pacific ocean.
Answer:
The answer is A. 18.2 g/mL
Explanation:
The density of a compound, substance or solid is express as the ratio between the mass and the volume of itself. So, in this case we can obtain the density since the division between 100 g (mass) and 5.49 mL (volume).
Density (ρ) = 100g/5.49mL = 18.2 g/mL
Answer: B
Explanation:
K is +1 & S is -2 ==> K2S
Potassium sulfide is the inorganic compound with the formula K₂S. The colourless solid is rarely encountered, because it reacts readily with water, a reaction that affords potassium hydrosulfide and potassium hydroxide.
You will need to look up some conversions of gram to lbs
1 gram = 0.00220462262 pounds
1 mL = 0.000264172052 US gallons
and mL to gal
1.035 g / cm^3 x 0.0022 lbs / 1 gram x 1 mL / 0.000264 gal
Answer:
A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.
Explanation:
I hope this helps