Which two particles make up most of the mass of a hydrogen-2 atom?

(1) electron and neutron

(2) electron and proton

(3) proton and neutron

(4) proton and positron

What is the atomic mass of iron

The reaction 2 no (g) + cl2 (g) → 2 nocl (g) is carried out in a closed vessel. if the partial pressure of no is decreasing at a rate of 184 torr/min, what is the rate of change of the total pressure in the vessel?

How many grams of glucose are in 175 mL of a 5.50% (m/v) glucose solution?

Substance A and B are the same mass and at the same initial temperature. When the same amount of heat is added to each, the final temperature of A is 75 degrees Celsius and B is 35 degrees Celsius.

The shape of molecules that contain only two atoms is

Consider a three sequentially stepped process named as Process A, Process B and Process C. Input comes into Process A. Output form A goes into Process B. Output from B goes into Process C. Output of C is the final output.

What are elements and how do they differ?

Write the structire of the salt that forms when diethylamine is mixed with hydrochloric acis

The heat of combustion of propane, C3H8, is 2220 kJ/mol. The specific heat of copper is 0.385 J/g°C. How many grams of propane must be burned to raise the temperature of a 10.0 kg block of copper from 25.0°C to 65.

Which is an example of Temporal Isolation? A. Flowers that bloom in different months. B. Birds that have different mating calls C. Fruits flies that mate in different locations. D. Squirrels that have different fur colors