Our Prevnar 13 (Pneumococcal 13-valent Conjugate Vaccine [Diphtheria CRM197 Protein]) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication. This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report vaccine side effects to the US Department of Health and Human Services at 1-800-822-7967.
The simplest hydrocarbon , methane is a gas with a chemical formula of CH4. The carbon atom central to the methane molecule has 4 valence electrons and thus needs 4 more electrons from four hydrogen atoms to complete its octet. The hydrogen atoms have a 109 degree bond angle giving the molecule a tetrahedral geometry . A principal component of natural gas, methane is significant .
Save. Methane is the simplest organic compound and hydrocarbon, with the chemical formula CH4 and molecular weight of 16.043 g/mol. Methane is used in chemical industry to produce a mixture of carbon monoxide and hydrogen called the synthesis gas.Mainly, methane is utilized as a fuel for electricity generation and in domestic ovens and furnaces.hysical Properties. Methane gas is colorless, odorless and tasteless. Smell of the natural gas used for domestic needs comes from additives (e.g. methyl mercaptan) and constitutes a safety measure. Methane gas density is 0.717 kg/m3, and it is lighter than air.