How does the periodic table help in predicting the formula of a stable ionic compound?
• Metals in Group 1 form cations with a -1 charge.
Metals in Group 2 form cations with a +2 charge.
Metals in Group 1 form anions with a +1 charge.
O Metals in Group 2 form anions with a -2 charge.

b. read the phase at the intersection of any given temperature and pressure.

the "power" of a lens is its resolution power, or its ability to distinguish between to closely located points. with the low power lens, it is likely you will see the rough form of the hay and maybe some movement of dots around the hay. however, when observed with the high power lens, the detailed features of the hay become visible and the microbes being grown are more clearly visible.

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paper covers rock.

explanation:

rock only smashes scissors.