Which of the following is NOT a sign of a chemical reaction?
A) absorbing heat when chemicals are contacted with each other
B) emission of heat when chemicals are contacted with each other
C) emission of light when chemicals are contacted with each other
D) absorbing light when chemicals are contacted with each other
E) All of the above are signs of a chemical reaction.
Correct Answer:
Verified
Q42: What are the coefficients for the following
Q43: When the equation _Ca3N2 + _H2O →
Q47: When water is heated,bubbles form in the
Q50: What are the coefficients for the following
Q51: When the equation,_O2 + _C5H12 → _CO2
Q54: When the equation _NO2 + _H2O +
Q56: Before a chemical equation can be written,one
Q60: When the equation,_N2 + _H2 → _NH3
Q61: Which of the following equations is NOT
Q65: Which of the following compounds is INSOLUBLE?
A)magnesium
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents