Chemistry, asked by Kenaz, 5 months ago

The only sure evidence for a chemical reaction is

a. the formation of a gas.

b. production of one or more new substances.

c. color change.

d. changes in properties.

Answers

Answered by Anonymous

2

b. production of one or more new substances.

Please Mark branilest Answer ❤

Previous Question

Next Question

Similar questions

Math, 2 months ago

a drawer is 5 feet wide 4 feet deep and 2 feet tall what is the volume of the drawer...

Math, 2 months ago

solve this: (23-947)12(547x67)-36+47-44 x 43+43(37+33)=?

English, 2 months ago

Do as directed : 37. When he finished, he went to the window to buy a stamp. (Select the correct Compound sentence.) A. Having finished, he went to the window to buy a stamp. B. He finished and went to the window to buy a stamp. C. He went to the window to buy a stamp as soon as he finished. D. On finishing, he went to the window to buy a stamp. (Select the correct question tag.)...

English, 5 months ago

what did Johnsy want to outside the curtains...

Math, 5 months ago

Write the full form of HCF = .

Hindi, 10 months ago

84. इस कलियुग में कृष्ण भावना ही योग की सर्वोत्तम पद्धति क्यों है ? (भगवद्गीता 6.20-22) क. क्योंकि इसमें कठिन शारीरिक व्यायाम की आवश्यकता नहीं। ख. क्योंकि इसमें घंटों तक नाक की नोक पर ध्यान केन्द्रित करने की आवश्यकता नहीं। ग. क्योंकि कलियुग में ध्यानयोग, ज्ञानयोग और हठयोग का पालन करने में अनेक समस्याएं हैं। घ. ऊपर लिखित सभी...

Physics, 10 months ago

A source of sound S emitting waves of frequency 100 Hz and an observer O are located at some distance from each other. The source is movina with a speed of 19.4 ms-1 at an angle of 60° with the source observer line as shown in the figure. The observer is at rest. The apparent frequency observed by the observer (velocity of sound in air 330 ms-), is ...

Social Sciences, 10 months ago

what is gynarchy in society...