world history
4 famous poet during Spain golden age ?
chemistry
Don't forget just Arsenate, which is AsO4-3. That's the missing piece.
uhar
two blocks a and b are connected by a cord passes over a frictionless pulley. the mass of a is 1.2 kg and the magnitude of acceleration is 3.6
discrete
we have 20 kinds of presents. we want to give 12 children presents but each child doesn't need to get one. No child can get 2 copies of the same present. in how many ways can we give presents? please explain! the answer is (2^20)^12 but i dont see why
Chemisty
Determine how many calories are need to heat 30 grams of water from 10 degrees C to 30 degrees C
chemistry
What volume of 9.0Molarity of H2SO4 is required to react with 20.0g of NaOH?
8th grade science
write an advertisement that you could use to sell copies of Mendeleev's periodic table to chemists in 1869. Be sure to emphasize the benefits of the table to the chemical profession. Remember, the chemists have never seen such a table. i want you to give me an advertisement.
science 8th grade
give me an advertisement
science 8th grade
write an advertisement that you could use to sell copies of Mendeleev's periodic table to chemists in 1869. Be sure to emphasize the benefits of the table to the chemical profession. Remember, the chemists have never seen such a table.
math
4 pounds
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