Answer:
dinitrogen pentoxide
Explanation:
Based on the research, dinitrogen pentoxide is a chemical compound containing only nitrogen and oxygen which is both nonmetal. When two nonmetals or two negatively charged atoms try to form bonds, they always form covalent bonds. Hence, Dinitrogen Pentoxide is not ionic - it is covalent.
B . microscope
this is the answer .
Answer:
Explanation:
Scientists know that there are 6x1023 molecules in a mole - so we have about 0.5x1023 molecules in our marble…and since every silicon dioxide molecule has one atom of silicon and two of oxygen, we have a grand total of 1.5x1023 atoms. That's 150,000,000,000,000,000,000,000 atoms
First we will write the formula for the combustion of the sugar.
C₁₂H₂₂O₁₁ + 12O₂ → 12CO₂ + 11H₂O
We have produced 2.40 g of CO₂. We will convert this to moles of CO₂ and then convert that value to moles of sugar.
2.40 g / 44.0 g/mol = 0.0545 moles CO₂ x 1 mole C₁₂H₂₂O₁₁/12 mole CO₂ = 0.00455 moles of C₁₂H₂₂O₁₁
We can now convert the moles of sugar to a mass of sugar.
0.00455 moles C₁₂H₂₂O₁₁ x 342 g/mol = 1.56 g C₁₂H₂₂O₁₁
We want to determine the mass percentage of salt in the 3.5 g mixture of sugar and salt.
3.5 g mixture - 1.56 g sugar = 1.94 g salt
(1.94 g salt/ 3.5g mixture) x 100% = 55%
Therefore, the mass percentage of table salt in the mixture is 55%.
Answer:
Through the process of condensation
Explanation:
Condensation is when gas converts to liquid. Carbon Dixide in the air will eventually convert to water and ruin the ocean water, thus affecting coral reefs. Please mark brainliest :)
