Which equation is balanced?

A. Na+F2=2NaF

B. Mg+2O2=2MgO

C. 2Al+3F2=2AlF3

D. Al+3O2=Al2O3

Significant figures of 1.004 x 10^-7

Which of these 1 M solutions will have the highest pH? (1) NaOH (3) HCl (2) CH3OH (4) NaCl

What is the concentration of 10.00 mL of HBr if it takes 5mL of a 0.253M LiOH solution to neutralize it?

How many moles of Ca are in 425 g of Ca

St2 Second Laws A 1.500 kg car is accelerated at 2.4 m/s2. What force was needed to produce this acceleration? A. 3,600 N B. 606 N C. 625 N D. 3.668 N Reset Submit

Which of the following is the best indication that a chemical change has taken place? a. The matter changes color. b. A mixture separates into layers. c. The change is reversible. d. The shape of the substance changes.

This is not lost in a chemical Reaction (4 letter word second letter is A)

Which type of soil holds the least water

Eq-43 which type of fire extinguisher should be onboard a vessel with a permanently installed fuel tank

5. Identify a suitable method that would be used to separate mixture of the follow [b]Water and ethanol c]Table salt dissolved in water d] iodine and potassium Pul the table below