How many vertices does a tetrahedron have?

What differs between a radioactive isotope and a stable isotope?

What will be the n-factor for Ba (MnO4) 2 in acidic medium? (where it behaves as an oxidant)

Which enthalpy change (î"h) is correct for a substance changing from the liquid phase to the solid phase?

Identify two factors that can make climates vary from place to place

What structure holds the sister chromatids to the spindle fibers? a. kinetochore b. chromatin c. mpf d. cyclin e. centromere

Check my work? 150 g of an unknown liquid is heated with 24,975 kJ of heat to form 0°C to 75°C. Identify the unknown liquid. Substance C (J/g-°C) Water (ice) 2.05 Ammonia (liquid) 4.70 Ethanol 2.44 Gasoline 2.22 Water (liquid) 4.18 Water (vapour) 2.

The distance from the sun to the earth is 1.496x10^8 km. How long does it take light to travel from the sun to the earth

10. Airbags in automobiles contain the compound sodium azide, NaN3. A crash triggers the decomposition reaction of NaN3 to produce nitrogen gas, which causes the airbag to inflate. How many grams of NaN3 are required to produce 90.

Using the following formula 4HF+S1O2>S1F4+2h2o How many moles of HF will react completly with 9.0 moles ofFIO2?

Which of the compounds above are strong enough acids to react almost completely with a hydroxide ion (pka of h2o = 15.74) or with a bicarbonate ion (pka of h2co3 = 6.37) ?