4.55 kg has how many significant figures?

According to the second law of thermodynamics, energy tends to become more spread out. True or False?

Be sure to answer all parts. how would you prepare benzylamine (c6h5ch2nh2) from c6h5cooh? more than one step is required. qsleft1 edit structure ... qsright1 select the correct reagents for each step.

Why is the ocean water near the poles less salty than other places? Question 8 options: Rain washes mineral ions from the land into water. Fresh water from the glaciers are melting into it. Active underwater volcanoes erupt nearby.

Which determines the state of matter for any material? A. the size of the atoms B. the hardness of the material C. the behavior of the molecules D. the weight of the material B. fixed volume, takes the shape of its container C.

Of these four liquids, which is the most viscous? a. water at room temperature b. honey at room temperature c. ethyl at room temperature d. hot motor oil

When balancing an equation, should you adjust the subscripts or the coefficients?

How does the sun warm the earth

What controls the amount of light that enters the eye?

The universe contains billions of galaxies, each containing billions of stars. True or false

How is measuring the volume of liquids different than measuring the volume of regular-shaped solids?