There are no negative consequences to using nuclear energy.

true or false

What is the difference between sulfide and (mono) sulfate?

A student used 10 mL water instead of 30mL for the extraction of the NaCl from the mixture. How would this affect the calculated percentage of NaCl in the sample?

What is the atomic mass? A: The sum of the protons and neutrons B: The difference of the protons and neutrons C: The sum of the protons and electrons D: The difference of the protons and electrons.

A sample containing anthracene dissolved in methane was separated using gas chromatography. Methane was detected at 42.5 seconds (tm) and anthracene was detected at 173.6 seconds (tr).

Which statement regarding reduction potentials is false? a. They are usually tabulated as half‑reactions. b. They can be used to calculate free‑energy changes. c. The reference standard for them is H++e-⟶12H₂. d.

Ammonia (NH3) burns in air to form nitrogen dioxide and water. Calculate grams of nitrogen dioxide produced if 4.0 grams of ammonia are consumed

What year did mendeleev organized his periodic table in order of increasing atomic number

What is the volume of 1.9 moles of chlorine gas (Cl2) at standard temperature and pressure (STP) ? 12 L 22.4 L 43 L 81 L

This decomposition is first order with respect to phosphine, and has a half‑life of 35.0 s at 953 K. Calculate the partial pressure of hydrogen gas that is present after 70.5 s if a 2.20 L vessel containing 2.

A new element has two isotopes, one with a mass of 40.0 amu and the other with a mass of 42.0 amu. the atomic weight is 40.50 g/mol. pick the true statement a. the isotope at 42.0 amu is less abundant b. the element has 19 protons and 21 neutrons c.