Yes, there are substances with a CO and NH2 group. One example is glycine, which is the simplest amino acid and has both a carboxyl group (COOH) and an amino group (NH2). Another example is urea, which has a carbonyl group (CO) and an amino group (NH2). These functional groups are important in biological molecules and have various roles in the body. **

To calculate the amount of NH2 in moles, you need to know the mass of NH2 in grams and the molar mass of NH2. First, determine the mass of NH2 in grams using a balance or by looking it up in a chemical database. Then, divide the mass of NH2 in grams by the molar mass of NH2, which is approximately 16.02 g/mol. This will give you the amount of NH2 in moles. The formula for calculating moles is moles = mass (g) / molar mass (g/mol). **

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Yes, the NH2 atom is partially negatively charged and the H atom is partially positively charged. This is due to the unequal sharing of electrons in the N-H bond. Nitrogen is more electronegative than hydrogen, so it attracts the shared electrons more strongly, leading to a partial negative charge on the nitrogen atom and a partial positive charge on the hydrogen atom. This partial charge distribution is what gives the NH2 molecule its polar nature. **

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To determine which acid, NH2 or NH3, reacts with water to release H+, you can compare their acid dissociation constants (Ka). The higher the Ka value, the stronger the acid. NH3 has a Ka value of 5.6 x 10^-10, indicating that it is a weak base and does not readily release H+. On the other hand, NH2 (ammonium ion) has a Ka value of around 5.6 x 10^-10, indicating that it is a stronger acid and can readily release H+ in water. Therefore, NH2 is the species that reacts with water to release H+. **

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