Which of the following measurements is expressed to three significant figures?

a) 0.007 m

b) 7077 mg

c) 7.30 x 10^-7

d) 0.070 mm

What is an output force?

Begin with igneous rock and explain how it could change through two or more steps in the rock cycle

Which is an example of a colloid? a) a mixture that settles out b) a mixture that is separated by filtration c) a mixture that scatters light d) a salt and water mixture

What's the molar mass of Mg (NO3) 2

Which type of solution forms a crystalline structure? gas solution liquid solution solid solution liquid and gas solution

How does the cow cross the road

Consider these two electron configurations for neutral atoms l and m. l - 1s22s22p63s2 m - 1s22s22p63s13p1 what is the atomic number of l

A chemist in an imaginary universe, where electrons have a different charge than they do in our universe, performs the millikan oil drop experiment to measure the electron's charge. the charges of several drops are recorded below.

When an ionic bond forms, which part (s) of the atoms are directly involved?

When a 3.00 g 3.00 g sample of KBr KBr is dissolved in water in a calorimeter that has a total heat capacity of 1.36 kJ ⋅ K - 1, 1.36 kJ⋅K-1, the temperature decreases by 0.370 K. 0.370 K. Calculate the molar heat of solution of KBr. KBr.