What is the sum of 0.0421 g + 5.263 g + 2.13 g to the

correct number of significant digits?

A) 7 g

B) 7.4 g

C) 7.44 g

D) 7.435 g

This symbol ⇔ indicates: question 2 options: that heat must be applied. that the reaction is reversible. that a gas is formed by the reaction. an incomplete combustion reaction.

This is the chemical formula for nickel tetracarbonyl (a powerfully poisonous liquid used in nickel refining) : nico4 a chemical engineer has determined by measurements that there are 9.55 moles of nickel in a sample of nickel tetracarbonyl.

How does granite differ from gabbro in coloring and silica content

Adaptations result from interactions between organisms and their___.

Which of the following is the most effective means for the body to dissipate heat when the temperature and radiant heat of the environment are higher than the body temperature? Group of answer choices Evaporation Radiation Conduction Convention

Two children are playing tag. Child A who is doing the chasing can run 100m in 24 seconds Child B is running away from child A and can run 64m in 21 seconds.

What ion does a base increase

What is the definition of Amplitude?

An excess of NiCO3, 12 g, was added to 40cm cube of sulpheric acid, 2.0 mol/dm cube. The unreacted nickel carbonate was filtered out and the filtrate evaporated to optain the crystals.

Under what condition is decompostion the fastest? Under what condition is it the slowest?