The change in isotopes over time due to the emission of radioactive particles is known as

A. absolute-age dating.

B. half-life.

C. radiometric dating.

D. radioactive decay.

One of the intermediates in the synthesis of glycine from ammonia, carbondioxide and methane is aminoacetonitrile C2H4N2. The balanced chemical equation is 3CH4+5 CO2 + 8NH3 - --> 4C2H4N2 + 10H2O.

Which is true for a substance that releases energy? A. The energy release decreases the molecular motion and the kinetic energy of the substance, B.

How many grams of potassium fluoride can form if 4.00 grams of potassium are reacted with 3.00 grams of fluorine gas according to the reaction: 2K (s) + F2 (g) → 2KF (s)

How many atoms are there of 1.85 moles of Fe?

Nitric oxide (no) reacts with oxygen gas to form nitrogen dioxide (no2), a dark brown gas: 2no (g) + o2 (g) → 2no2 (g) in one experiment, 0.863 mol of no is mixed with 0.501 mol of o2. determine which of the two reactants is the limiting reactant.

If an atom has sp hybridization in a molecule: the maximum number of σ bonds that the atom can form is

What is an oxidizing agent?

In times of hot dry weather some cities ban the use of garden sprinklers why do you think there is such a rule

What is the product of the chemical reaction ... Au+O2

Compare and contrast the compounds CH4 and PH3 in terms of covalent bonding, molecular geometry (shape), and intermolecular forces. Which substance would experience a stronger attraction between its molecules, and why?