Aluminium has the electron arrangement 2,8,3. What is the charge on

the ion it forms?

What are the general characteristics of a solid

Explain how the system of the flask and the balloon illustrates the conservation of mass.

5. Poly-L-glutamic acid adopts a random coil structure at physiological pH. Under what pH conditions might poly-L-glutamic acid adopt an α-helical structure?

What is the order of a food chain

10cm3 of an unknown hydrocarbon was sparked with 100cm3 of oxygen (an excess). When the resulting gases were cooled back to the original temperature, they had a volume of 75cm3.

About how many miles on Earth are equal to one degree of latitude?

What are the allotropes of sulphur And phosphorus?

Particles are measured in

Marcus measured the masses and volumes of samples of four different substances, and he calculated their densities. The table shows Marcus's measured and calculated values. Substance Mass (g) Volume (cm3) Density (g/cm3) aluminum 5.7 2.1 2.

5. Rocks and sediment change their form as they move through the rock cycle. Which change involves melting? O lava to rock O magma to lava O rock to magma rock to sediment Submit .