All changes saved 30. Sodium metal is placed in a beaker of water. When the two substances make contact, sparks form and heat can be felt coming out of the reaction. This is due to the bonds of water breaking and a new substance known as sodium hydroxide being formed. Which of the following observations would indicate that this reaction is a chemical change? O The substances were in a beaker. Sodium metal is shiny. O Heat was formed. Water is a liquid.

All changes saved 30. Sodium metal is placed in a beaker of water. When the two substances make contact, sparks form and heat can be felt coming out of the reaction. This is due to the bonds of water breaking and a new substance known as sodium hydroxide being formed. Which of the following observations would indicate that this reaction is a chemical change? O The substances were in a beaker. Sodium metal is shiny. O Heat was formed. Water is a liquid.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Question 1 of 20 A barrel of crude oil has a volume of 42 gallons, only approximately 45% of which is processed into gasoline. If your car achieves 32 mi/gal, and you drive 36,000 miles in one year, how many barrels of crude oil are required to run your car for a year? Tap here or pull up for additional resources
Choose ALL allowable m values when given the following values for n, I, and m,. You may have to select multiple answers. 1 n = 3,1 = 1, m =__ , ms = + -1 -4 1 -3 2 3. -2
The intensity of red light (680 nm) absorbed by a solution of green dye was found to be 1.59 V and the intensity of light when no dye was present (the blank) was found to be 2.75 V. What is the absorbance of the solution of green dye? Type only the value in the answer field. Report answer to three significant figures.
What is a primary standard?
The Ksp of Al(OH)3 is 4.6*10-33, and the Ksp of Zn(OH)2 is 3*10-17 1) Can Al3+ be separated from Zn2+ by the addition of an NaOH solution to an acidic solution that contains 0.350 M Zn2+ and 0.150 M Al3+ ? If can't leave answer fields in parts 2, 3 empty. (Answer as yes or no) 2) At what hydroxide ion concentration will the second cation precipitate? (Answer must be mol/L) 3) What is the concentration of the other cation at that hydroxide ion concentration? (Answer must be mol/L)
VUITOVI Part D 5.5x10-2 M in acetic acid and 5.5x10-2 M in hydrocyanic acid Express your answer to two decimal places. 195] ΑΣΦ pH= Submit Provide Feedback Request Answer T ?
Graph ? ? the table and find X1 valeu.
I have two question
Submitting an external tool Available after May 9 at 11:59pm back I Review I Constants I P Part D [OH-] = 7.9 x 10-3 M Express your answer using two decimal places. pH: %3D Submit Request Answer MacBook Air
In analytical instrument the stimulus can be digitizer or plotter. O True O False
Answer Q40, 41, 42
please answer both