Answer:
an accelerant was used because maybe some was spilt and therefore leaving a smell and evidence
Answer:
atomic number
Each period, numbered one through seven, contains elements of increasing atomic number. Unlike Mendeleev's original list, the modern periodic table is based on atomic number, or the number of protons in an element's atomic nucleus
Explanation:
I believe the correct response is A.
Explanation:
- The rule apply for the multiplication and division is :
The least number of significant figures in any number of the problem determines the number of significant figures in the answer.
- The rule apply for the addition and subtraction is :
The least precise number present after the decimal point determines the number of significant figures in the answer.
a) 12.3 mm × 15.853 mm :

Three significant figures.
b) 72.98 · 15.830 ml

Three significant figures.
c) 12.3 mm + 15.853 mm

Three significant figures.
d) 172.3 cm - 15.853 cm

Four significant figures.
Answer: Option C. The concentration of the reactants is less than that of the product d
Explanation: