The table lists the mass and charge of a proton and a neutron. how do the gravitational and electrical forces between a proton and a neutron compare? a) the gravitational force is much smaller than the electrical force for any distance between the particles. b) the gravitational force is much larger than the electrical force for any distance between the particles. c) the gravitational force is much smaller than the electrical force for only very small distances between the particles. d) the gravitational force is much larger than the electrical force for only very small distances between the particles.

The energy released by a chemical reaction can be measured using a calorimeter. when barium hydroxide octahydrate crystals are reacted with dry ammonium chloride inside of a coffee cup calorimeter, the temperature of the 18.00 g of water in the calorimeter decreases from 30.0°c to 8.0°c. the equation for calculating energy absorbed or released by a reaction is: where q is the energy released or absorbed, m is the mass of water in the calorimeter, cp is the specific heat of water, and δt is the observed temperature change. if the specific heat of liquid water is 4.19 j/g·°c, how much energy was absorbed by the reaction?

Sunidhi made a study chart about changes in states of matter. which headings best complete the chart?

En un laboratorio, nakisha mezcla una solución de hidróxido de sodio con un indicador llamado fenolftaleína. cuando se combinan, crean una solución de color rosa. nakisha se pregunta si la mezcla de otras soluciones con fenolftaleína también creará este color rosa. ? cómo podría nakisha utilizar el proceso de investigación científica para determinar si la mezcla de otras soluciones con fenolftaleína también creará un color rosa? marque las que correspondan.