In what ara did reptiles become dominant

Computers use energy and respond to certain stimuli such as commands from the user. why then are computers not considered living things.

Which substance can be decomposed by chemical means

How is the measurement unit, the mole, different from the measurement unit, the kilogram?

Consider the balanced chemical reaction below. When the reaction was carried out, the calculated theoretical yield for water was 176 grams, but the measured yield was 148 grams. What is the percent yield?

Correct the name to match the formula of the following compounds: (a) calcium (ll) dichloride. CaClZ; (b) copper (|l) oxide. Cu20; (c) stannous tetrafluoride. SnF4; (d) hydrogen chloride acid, HCL

Given that the molar mass of NaCl is 58.44 g/mol, what is the molarity of a solution that contains 87.75 g of NaCl in 500. mL of solution? moles of solute Use molarity - liters of solution

What are 3 ways to seperate metal particles and salt

Sarah heated some orange coloured crystals in a test tube. The crystals turned green and fizzed. After the fizzing stopped, the test tube was allowed to cool. A green powder was left in the tube.

In which orbital does an electron in a bromine atom experience the greatest effective nuclear charge?

Kool-Aid is made up of sugar (C6H12O6), food coloring, and water. It is an example of a (n) element heterogeneous mixture homogeneous mixture compound