Step 1. Solve for the energy needed to heat 18 g of water from 70°C to 100 °C
(boiling point). Use specific heat of water
(4.2 J/g °C) as conversion factor.
18 g x (100-70) °C x 4.2 J/g °C =?

Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants

Light waves can move through , but they travel fastest when they move through a(n) .

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.