How much heat must be added to heat 0.750 g of water from 20.0°C to 40.0°C? (Remember, Q=C * m * ΔT) The specific heat of water is 4.186 joule/gram. Question 4 options: A) 322 kJ B) 126 kJ C) 62.8 J D) 62.8 kJ

Sodium metal reacts vigorously with water

The ethylammonium ion, CH3CH2NH3+, has a pKa of 10.81. It reacts with water to form ethylamine, CH3CH2NH2 and H3O+. Which of the following statements is true at pH 7? A.) ethylamine predominates B.) ethylammonium ion predominates C.

How many grams of potassium iodide will produce 500 grams of silver iodide, when there is an excess of silver nitrate? Why? A. 235 B. 707g C. 166g D. 301g

The taste and odors in fruit are often the result of:

When ethanol, C2H5OH (a component in some gasoline mixtures) is burned in air, one molecule of ethanol combines with three oxygen molecules to form two CO2 molecules and three H2O molecules.

The equation 2 N O 2 in equilibrium with N 2 O 4 represents a system,

How does the calorie compare to the metric unit the joule? How do you calculate a calorie? Is it the same for all types of food?

Under which conditions would the solubility of a gas be greatest? A. high pressure and high temperature B. high pressure and low temperature C. low pressure and high temperature D. low pressure and low temperature

How many milliliters is 0.55 L? O A. 1000 ml OB. 0.00055 mL O C. 550 ml D. 55 mL

When a warm front passes your location, the temperature rises rapidly. As a result, air density: B? increases decreases remains the same