The atomic number of the atom which does not usually form compounds is:

o17

o 16

o18

О 20

О 19

How many energy levels? Explain your answer.

In a first-order reaction (a d b and rate = k [ a., tripling the concentration of a will have what effect on the reaction rate?

What type of symbiotic relationship does a spider crab and algae have?

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Order the following ionic compounds in order of increasing magnitude of lattice energy: MgO, CaCl2, KCl, and LiF Group of answer choices MgO < CaCl2 < KCl < LiF KCl < CaCl2 < LiF < MgO LiF < KCl < CaCl2 < MgO KCl < LiF < CaCl2 < MgO KCl < LiF < MgO

200 lb/in" = ? tons/ft?

What variable is not used in the combined gas law

What is bromic acid

Which answer choice best explains why atoms of carbon-14 (C-14) are unstable?

When can polar bears take care of themselves