A sample of water with a mass of 622.7g undergoes a temperature change from 90.98°C
to 96.70°C. What is the heat change in Joules? Cwater=4.18J/g°C

A)0251608.10
B)3561.8J
C)14888.5)
D)2.51X105)

How many grams of n2h4 will be consumed by 23 g of n2o4

Alice did an experiment to find the relationship between the angle at which a ray of light strikes a mirror and the angle at which the mirror reflects the light. she placed a ray box in front of a mirror. she changed the angle at which the light from the ray box struck the mirror and noted the corresponding angle at which the mirror reflected the light. which of the following is the dependent variable in this experiment? the mirror used to reflect the light the ray box used as the source of light angle at which the light from the ray box strikes the mirror angle at which the mirror reflects the light from the ray box

Aplanet similar to earth has four moons roughly the same distance away. the moon that will most affect tides on the planet is the one that has the greatest a) mass. b) volume. c) density. d) amount of water.