A simple pendulum consists of a ball connected to one end of a thin brass wire. The period of the pendulum is 1.76 s. The temperature rises by 141 C, and the length of the wire increases. Determine the change in the period of the heated pendulum.

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?

Which statements are true concerning mineral formation? check all that apply. the slower the cooling, the larger the crystals. the faster the cooling, the smaller the crystals. crystals formed from magma are smaller than crystals formed from lava. minerals can only form in solutions when the solution is heated deep underground. when a solution cools, elements and compounds leave the solution and crystallize as minerals. minerals formed from hot water solutions can form narrow channels in the surrounding rock.

Calculate the percent composition by mass of each element in al(oh)3. use at least three significant figures.