The δh for the solution process when solid sodium hydroxide dissolves in water is 44. 4 kj/mol. When a 12. 6-g sample of naoh dissolves in 250. 0 g of water in a coffee-cup calorimeter, the temperature increases from 23. 0 °c to °c. Assume that the solution has the same specific heat as liquid water, i. E. , 4. 18 j/g-k.

Tortoise shells and snail shells are similar in function: they protect the organism from predators. based on a comparison of the organisms in the images, what can you conclude? 1. tortoises and snails have homologous organs, and they’re evolutionarily related. 2. tortoises and snails have homologous organs, and they belong to same species. 3. tortoises and snails have analogous organs, and they belong to the same species. 4. tortoises and snails have analogous organs, and they don’t belong to the same species. 5. tortoises and snails have analogous organs, and they aren’t evolutionarily related.

Earth takes in thermal energy from the sun in a process called . sunlight strikes earth’s surface at different angles. this angle is called the angle of . btw its

Consider the image seen here. the image, at point y, represents the process of during which a is being produced.