How many significant figures should be written in the sum 4.56 g + 9.032 g + 580.0078 g + 540.439 g?

a. 3

b. 4

c. 5

d. 6

e. 7?

According to the law of conservation of mass, why is it considered a mistake to add calcium to the product side if it is not in the reactant side of a particular chemical equation

What are hydrocarbons made of?

Which substance is the most alkaline? a. blood b. orange juice c. ammonia d. milk

What percentage of boys Chose walking

my attic keeps making sound and thombs wat does it mean iam creeped out right now it just happened and the lightbulb was shaking

The radius of a cobalt atom is 1.25 Å. What is its radius in meters (m) ?

Concentration is just one stress that can affect the equilibrium position. Another is temperature. Describe how you would design this experiment to test for the effects of temperature on equilibrium position.

Although DNA evidence cannot be obtained from hair evidence without a root, which of the following can be obtained from hair evidence?

Carbon naturally occurs in two forms: diamond and graphite. Why do these two forms have very different properties?

How many moles of hydrogen are evolved when an excess of sodium metal is added to one mole of citric acid?