14 g of sugar is dissolved in 100 ml of water. what is the mass of the new system?
question 2 options:
a) 114 g
b) 100 g
c)
86 g
d) 107 g

Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17

What is a substance? a. a physical property of matter b. a chemical property of matter c. an element or compound that cannot be physically separated d. characteristics used to tell the difference between mixtures

When did stem cell research become known ? who discovered stem cell? what experiments or studies have been conducted so far?