Chemistry, 10.09.2021 18:40 natalievick03
A chemist is identifying the elements present in a sample of seawater. What characteristic of an element's atoms always determines the element's identity?
Group of answer choices (Could someone help me? I am kind of confused) Thank you so much
A. The number of valence electrons
B. The location of valence electrons
C. The number of neutrons
D. The number of protons
Answers: 3
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Calcium hydride (cah2) reacts with water to form hydrogen gas: cah2(s) + 2h2o(l) → ca(oh)2(aq) + 2h2(g) how many grams of cah2 are needed to generate 45.0 l of h2 gas at a pressure of 0.995 atm and a temperature of 32 °c?
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Chemistry, 22.06.2019 00:00
Acurium-245 nucleus is hit with a neutron and changes as shown by the equation. complete the equation by filling in the missing parts. 52
Answers: 2
A chemist is identifying the elements present in a sample of seawater. What characteristic of an ele...
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