Anonymous
Anonymous asked in Science & MathematicsChemistry · 8 years ago

chemistry help ASAP!!!?

Question 22 (Multiple Choice Worth 2 points)

Which of the following has helped preserve resources while cutting the demand for energy?

water treated with chlorine

energy efficient appliances

landfills rather than burning waste

legislation against the use of chlorofluorocarbons

Question 23 (Multiple Choice Worth 2 points)

When fast moving electrons are released from an atom by way of a beta particle, the atom ends up with

one less proton and one more neutron.

one more proton and one less neutron.

the same number of protons and two more neutrons.

two more neutrons and the same number of protons.

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  • 8 years ago
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    22

    The one I would pick is B] energy efficient appliances. By saving energy, you save resources.

    23

    http://en.wikipedia.org/wiki/Beta_particle

    See this reference (paragraphs 2 and 3). There are 2 kinds of beta decays. You have discribed the first one.

    The answer to your multiple choice question is B, but you could argue it if you get it wrong.

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