Why is acid important for digestion

Which subatomic particle plays the greatest part in determining the properties of and element?

Convert 35.0g HCl to moles.

Suppose that 10.1 mL of HNO3 is neutralized by 61.9 mL of a 0.0041 M solution of KOH in a titration. Calculate the concentration of the HNO3 solution. Answer in units of M.

suppose that during the icy hot lab that 65 kj of energy were transferred to 450 g of water at 20 C. What would have been the final temperature of the water

4. How many moles are in 54.0 grams of Silver? 54.0 g Ag x (108mol ag / 1 g ag) = 5,832 ag moles Ag (Use the gray boxes to insert the values for the conversion factors.) 5. What is the mass of 6.3 moles of Sulfur? 6.3 mol S x (/) = g S 6.

Are the chemical reactions that take place when a battery connected endothermic or exothermic

What are 3 properties of carbon?

A (1. pathogen 2. Germ 3. Bacterium) is an agent that causes disease. All (1. bacteria 2. fungi 3. Viruses) are pathogens.

Calculate the solubility (in g/l) of calcium fluoride in water at 25°c if the ksp for caf2 is 1.5 * 10-10.

Distinguish between the terms accuracy and precision. In general, explain why a precise measurement does not always guarantee an accurate result.