How many moles of hydrogen could be produced in the complete decomposition of 2.50 moles of c7h5n3o6?

What are the correct formulas and coefficients for the products of the following double-replacement reaction? RbOH + H3PO4 - -> a) Rb (PO4) 3 + H2O b) RbPO4 + 2H2O c) Rb3PO4 + 3H2O d) H3Rb + PO4OH

Which piece of evidence would suggest an unknown substance is an ionic compound?

Your patient gets a prescription for 62.5 mcg (micrograms, mg) of digoxin in liquid form. The label reads 0.0250 mg/mL. How many milliliters of digoxin should you give?

Which of the following is used as evidence that the universe begin with the Big Bang A. Leftover energy in the universe from the event B. The existence of Atoms C. The force of gravity D. Craters on the moon

Which of the following is the term used to describe a set of elements whose properties tend to be largely predictable based on position on the periodic table?

What are primary and secondary alkanols

Hydrogen is 99% hydrogen-1; 0.8% hydrogen-2; and 0.2% hydrogen-3. calculate it's average atomic mass

Uranium-235 has a half-life of 713 million years. Would uranium-235 or carbon-14 be more useful for dating a fossil from Precambrian Time? Explain.

Earth's oceans contain many dissolved elements like calcium, sodium, and chlorine. These elements plus several others combine to form the salts in the oceans.

What is physical change in chemistry?