If protons repel each other then how is the nucleus of an atom able to stay together? ... the repulsive forces between the protons ... Why do protons not repel each other? ... [ http://wiki.answers.com/Q/If_protons_repel_each_other_then_how_is_the_nucleus_of_an_atom_able_to_stay_together
] Auto answered|Score .5842User:
Why are reactions that emit alpha particles generally considered more safe than those that emit beta particles?
Beta particles emit gamma rays.
Alpha particles have no charge.
Beta particles travel at a very low speed.
Alpha particles can be blocked very easily.
A) Beta particles emit gamma Auto answered|Score .8055|rio8408|Points 400|User:
Why do chemical reactions not produce radioactive particles?
Chemical reactions make the nuclei of atoms more stable.
Chemical reactions only release gamma rays.
Only electrons are involved in chemical reactions.
Mass is not conserved in chemical reactions.Weegy:
A) Chemical reactions make the nuclei of atoms more stable.Auto answered|Score .9343|rio8408|Points 400|User:
From an ethical standpoint, which best describes why new biotechnology products should be tested extensively before they are allowed to be used?
There can be unintended consequences to many new biotechnology products.
Many new products end up being more expensive than they appear to be.
Biotechnology products tend to stop working after a few years.
There are usually no benefits to the products of biotechnology.
Biotechnology products tend to stop working after a few yearsAuto answered|Score .8347|naval_heda|Points 93|User:
In an experiment, a student needs to know the mass of four different objects: a shoe, piece of paper, book, and a tissue. Which of the following units of measurement should the student use?
A) milligram is correct. A kilogram would best be used for mass of much heavier objects.Auto answered|Score .9265User:
A student measures the concentration of the product of a reaction over time. Which type of graph would best show the change in concentration over time?
box and whisper plot
... of reaction graphs, which plot time against concentration ... to show how things change over time ... type of graph used to display sets of data. A trend line or line of best fit ... [www.ehow.com/number-lines/
]Auto answered|Score .6989User:
Why are scientific journals considered more reliable sources than web pages for information about science?
Web pages are too difficult to make.
Scientists never lie about their data.
Scientific journals are read and openly criticized by many scientists.
Web pages are subject to strict standards of evidence and sources.
C) Scientific journals are read and openly criticized by many scientists. Auto answered|Score .945|debnjerry|Points 31398|
Education|No Subcategories|Auto answered|5/20/2012 11:15:47 AM