The fizzing you see when you drop an Alka-Seltzer tablet in water is the same sort of fizzing that you see from baking powder. If you look at the Question of the Day on baking powder, you will find that the baking powder reaction is caused by an acid reacting with baking soda (sodium bicarbonate).
How do you find the security code on your Chevy Chase debit card? back of the card the 3 numbers at the end of the signature panel. You can apply for a 'Chase credit card' online at Chase's official website; it is completely free and it will be delivered to your door as soon as possible.
Your security code can be found in the following locations on the following cards: Your card security code for your MasterCard, Visa or Discover card is a three-digit number on the back of your credit card, immediately following your main card number. Apple Credit Account. Your Apple Credit Account security code appears on the back of your card, just like the MasterCard photo to the right. If you have not yet received your plastic card, your security code is not required. The card security code for your American Express card is a four-digit number located on the front of your credit card, to the right of your main credit card number.