1.what is the amount of energy required to raise the temperature of 150 grams of aluminum by 10°c?
a.0.897 j
b.13.45 j
c. 1345.5 j
d. 4.18 j

2.if you have an endothermic reaction, heat energy is written on the product side of the equation.
false or true
3.find the amount of heat energy needed to convert 150 grams of ice at -15°c to ice at -63°c.
a. 14760 joules because the ice is cooling.
14760 joules because the ice is cooling.
c.14760 joules because the ice is being heated.
14760 joules because the ice is being heated.
4. find the amount of heat energy needed to convert 400 grams of ice at -38°c to steam at 160°c.
a.1284440 joules
b.159984 joules
c.246840 joules
d.331056 joules

Which mathematical relationship should you us to convert moles of a substance into grams

Nanotechnology, the field of trying to build ultrasmall structures one atom at a time, has progressed in recent years. one potential application of nanotechnology is the construction of artificial cells. the simplest cells would probably mimic red blood cells, the body's oxygen transporters. for example, nanocontainers, perhaps constructed of carbon, could be pumped full of oxygen and injected into a person's bloodstream. if the person needed additional oxygen-due to a heart attack perhaps, or for the purpose of space travel-these containers could slowly release oxygen into the blood, allowing tissues that would otherwise die to remain alive. suppose that the nanocontainers were cubic and had an edge length of 24 nanometers. part a part complete what is the volume of one nanocontainer? (ignore the thickness of the nanocontainer's wall.) express your answer using two significant figures. v v = 1.4ă—10â’20 l previous answers correct significant figures feedback: your answer 1.3824â‹…10â’20 = 1.382ă—10â’20 l was either rounded differently or used a different number of significant figures than required for this part. if you need this result for any later calculation in this item, keep all the digits and round as the final step before submitting your answer. part b suppose that each nanocontainer could contain pure oxygen pressurized to a density of 81 g/l . how many grams of oxygen could be contained by each nanocontainer?

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line