The outer planets-Jupiter, Saturn, Uranus, and Neptune-are made up of which gases?

1. hydrogen, carbon dioxide, and ammonia

2. methane, helium, and ammonia

3. methane, carbon dioxide, and ammonia

4. hydrogen, helium, and ammonia

At a certain temperature and pressure, 0.30 mol of carbon dioxide has a volume of 6.7 L. A 6.7 L sample of hydrogen at the same temperature and pressure A. has the same mass. B. contains the same number of atoms. C. has a higher density. D.

Which of the following is true about compounds

Moles of Fe in 3.13*1022 atoms of Fe

Give the oxidation number of the element indicated for each compound. a) carbon in Na2C2O4 b) nitrogen in HNO3 c) sulfur in H2SO4 d) carbon in HCO3 - e) manganese in KMnO4 f) chromium in Cr2O7 2-

What evidence do you have about when some metal objects rust?

Consider mixing 25.00 mL of 0.0200 M of each of the following of solutions. In which of the following will a precipitate form: Na2SO4 mixed with Ba (NO3) 2 NH4Cl mixed with Mg (NO3) 2 KF mixed with Ba (NO3) 2 MgCl2 mixed with Na2CO3

How many liters of chlorine gas at 650 mmhg and 25c can be produced by the reaction of 2.00 l of 2.50 m hcl solution with excess mno2?

What is the theoretical yield of H2S

How many atoms are there H, SO

How does the shape of the Earth affect the climate of different regions?