5 significant figures
1. never count zeros in front of the decimal
2. always count non zeros and zeros in between of two non zeros.
3. count the trailing zeros if there is a decimal
for example:
300 has 1 significant figures
0.70005 has 5 significant figures
0.880 has 3 significant figures
Keep practice and you should master it
Hope this help
Not sure but I think this MIGHT be it
Answer:
The answer is red.
Explanation:
- Methyl orange is an organic dye that used as an indicator in acid-base titrations because its color is changed according to pH of the medium (acidic, neutral or basic).
- Methyl orange is red in acidic solutions, orange in neutral solutions, and yellow in basic solutions.
Since pH of the solution is 2, the solution is acidic, the color of the solution will be red.
<u>Gamma Decay</u> in the nucleus is similar to <u>Photon Decay </u>in atoms. When a electron charges energy levels in the atoms, it desposes of photon (with energy of order electron volts).