An atom has 27 protons and 22 neutrons. What is the chemical symbol for the atom?

Consult the periodic table.

O Co

О Cs

O Cr

O Ca

Calculate the number of moles of sodium oxide that should be produced with 6.50 g of sodium react with oxygen gas

When these bond to make ccl4, what is the shape of a ccl4 molecule? linear circular tetrahedral trigonal planar

Facts about cell give me 5

Describe how a Newton's cradle illustrates the conservation of energy. A) Dropping the ball transfers the gravitational energy to the others causing the ball on the opposite side to swing up.

What is the molarity of the following solution given: 1.0 moles of potassium fluoride (KF) is dissolved to make 0.10 L of solution

5. Identify a suitable method that would be used to separate mixture of the follow [b]Water and ethanol c]Table salt dissolved in water d] iodine and potassium Pul the table below

How much energy is needed to convert 57.3 grams of ice at 0.00°c to water at 75.0°c? specific heat (ice) = 2.10 j/g°c specific heat (water) = 4.18 j/g°c heat of fusion = 333 j/g heat of vaporization = 2258 j/g?

A certain first-order reaction (A→productsA→products) has a rate constant of 9.90*10-3 s-1s-1 at 45 ∘C∘C. How many minutes does it take for the concentration of the reactant, [A][A], to drop to 6.

Assign the oxidation number for (NH4) 3PO4

When gold is melted and formed in a mold to make a piece of jewelry, what type of change is taking place?