An atom has 13 protons and 14 neutrons. What is its mass number?

Perform each conversion 3.55kg to gramd

Which of the following biological macromolecule is correctly paired with its main function in the body?

Given the balanced equation representing a reaction: 4Al (s) + 3O2 (g) - - >2Al2O3 (s) Which type of chemical reaction is represented by this equation? (1) double replacement (2) single replacement (3) substitution (4) synthesis

You can calculate the acid dissociation constant of a weak acid from experimental data

how have seals, penguins, and small baleen whales of antarctic waters benefited from the decline of large baleen whales?

Consider mixing 25.00 mL of 0.0200 M of each of the following of solutions. In which of the following will a precipitate form: Na2SO4 mixed with Ba (NO3) 2 NH4Cl mixed with Mg (NO3) 2 KF mixed with Ba (NO3) 2 MgCl2 mixed with Na2CO3

How many liters of chlorine gas at 650 mmhg and 25c can be produced by the reaction of 2.00 l of 2.50 m hcl solution with excess mno2?

What is the theoretical yield of H2S

How many atoms are there H, SO

How does the shape of the Earth affect the climate of different regions?