Which of the following elements is only made in laboratories?

sb

cm

te

tb

For the reaction 5 o2 (g) + 4 nh3 (g)  4 no (g) + 6 h2o (g) if nh3 is being consumed at a rate of 0.50 m•s - 1, at what rate is h2o being formed?

PV = nRT The Ideal Gas Law, given above, shows the relationship between the pressure of a gas, its volume, the number of moles, a constant R, and the temperature of the gas T.

What happened to a liquid when it releases enough energy

What's the molarity of the solution containing 10 g of NaCN in 250 mL of solution?

Which element has an ion with a radius that is larger than its atomic radius A) K B) Cr C) Zn D) Cl

18. which bond is most polar? H--F H--Cl H--Br H--I

What kind of reaction is ca (s) + h3po4 (aq) ca3 (po4) 2 (s) + h2 (g)

In the teapot dome scandal, what did the secretary of the interior albert fall lease

A Material made of equal parts is called what? A. Atom, B. Pure substance, C. Mixture

Part C Why are dichotomous keys useful in classifying a new species?