lab #1

we worked with calcium soudium bicarbontae and phenol red. when we mixed all 3 of these with water and shook it up in a bag and watch the changes appear. the chemical changes where.

1. heat




2. gas was made




3. the red changed to yellow/ orange




4. bubbles formed.




5. the smell of rubbing achool

then when we tried to find out what made what chemical reaction happen. we found that when we mixed the water with the calcium and soudium bicarbonate that we the heat and gas reaction. then when we mixed calcium and the phenol red and found that it makes a hot pink color and some little bubbles. then we put the soudim bicarbonate with the water and found that that made heat. then we put the phenol red and the soudium and that made heat. then we put the calcium and water and the chemical reaction was cold. then last we mixed he phenol read and the calcium and the soudium bicarbonate and that made the yellow color and the gas and the heat.

1. water was the change for the heat.




2. yes the waterand calcium made a temp change to cold and the temp change that we got was a hot temp.




3. the color we got for the 1st time was orange and yellow and the one that got us that was calcium and soudium and phenol red.




4. no because the bubble appear the minute that the chemicals meet each other and the color takes time to mix.


5. when i took water out of the controled exsperiment it doesnt change anything. all the reactions happen just the same. so we put the phonel red soudium and calcium in a baggy.


6. there was less in the baggy and the baggy popped. and we did not need any of the water to get th ereaction to happen.


7. then nothing would happen like the heat and gas would not happen and the color would not be the same. we would test it by leaving out it out.


8. yes it does because the elements will be doing something different. and some atoms move faster or slower causeing a reaction to happen so either way a reaction happens.