Which of the following is not a rock? a. granite b. shale c. marble d. diamond

Nitrogen combines with oxygen to form several different compounds: N2O, NO, NO2, and N2O5. Determine the gram equivalent weight of nitrogen in each compound. Show how these compounds illustrate the Law of Multiple Proportions.

How to change ml to l and l to ml?

Why does a person's heart rate increase during exercise? (1) Less oxygen is needed. (2) More oxygen is needed. (3) Less carbon dioxide is needed. (4) More carbon dioxide is needed

Explain how heat would change the density of a parcel of air

Two moles of magnesium and five moles of oxygen are placed in a vessel. When magnesium is ignited ca two moles of magnesium and five moles of oxygen are placed in a vessel. When magnesium is ignited, if reacts with oxygen.

The relationship between number of particles and pressure is As number of particles increases, pressure increases As number of particles increases, pressure decreases The two are not related

Consider the reaction: Al2S3 + 6 HCl → 2 AlCl3 + 3 H2S The reaction has a 29.1% yield. How many grams of Al2S3 are needed to react with 30.0 moles of HCl? a) The molar mass of Al2S3 is 150.16 grams/mole. b) The molar mass of HCl is 36.46 grams/mole.

Why is Earth's temperature just right for life? A. Earth's core is hot enough to heat Earth's surface. B. Earth's magnetic field creates suitable temperatures on Earth's surface. C. Earth's crust is warmed by heat from the sun. D.

Which of the following is an example of a chernical change? Boiling water Burning paper Dissolving sugar in water Melting gold

Part a by drawing molecular orbital diagrams for b2, c2, n2, o2, and f2, predict which of these homonuclear diatomic molecules are magnetic.