The acceleration due to gravity on earth is 9.80 m/s2. if the mass of a dog is 40.0 kg, what is the weight of the dog? 4 n 40 n 392 n 490 n

Which indicator would best distinguish between a solution with pH of 7.4 and a solution of 9.2? 1) phenolphthalein 2) thymol blue 3) bromthymol blue 4) litmus

Which of the following is a synthesis reaction? 2Na + 2H 2O 2NaOH + H 2 2S + 3O 2 2SO 3 2H 2O 2 2H 2O + O 2 CaCl 2 + F 2 CaF 2 + Cl 2

How many protons and electrons do the following ion have? a) N-3 (atomic number=7) Explain how to do it?

What is the common name given to a simple lead container that is used to protect workers that handle radioisotopes? a cat. b pig C goat d box

Why are atoms always bonded

A 3-column table with four rows. The first column has entries Liquid A, Liquid B, Liquid C, Liquid D. The second column titled mass has entries 160 grams, 173 grams, 198 grams, 220 grams.

Which option correctly describes the influence of electronegativity difference on bond character?

How do I write a balanced half-reaction describing the reduction of gaseous dioxygen to aqueous oxide anions?

When table salt is placed in water and stirred it dissolves and a clear liquid is obtained. This process is a

Carbonic acid is generated by bubbling co2 into a beaker of water. If it took 5 minutes for this reaction to reach equilibrium, how would the results differ if the enzyme carbonic anhydrase was added to the beaker of water?