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algol [13]
3 years ago
5

What's an atom ? Science

Chemistry
2 answers:
spin [16.1K]3 years ago
8 0

Answer: the basic units of matter and the defining structure of elements/Smallest part of an element that can still retain the properties of that element

Explanation:

makvit [3.9K]3 years ago
6 0

Answer:

Explanation:

an atom itself is made up of three tiny kinds of particles called subatomic particles:proton neutron and electron. it is a fundamental piece of matter. In a normal (neutral) atom the number of protons and the number of electrons are equal. Often, but not always, the number of neutrons is the same, too.

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Answer:  "exothermic" .
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If the rate of a reaction increases by a factor of 64 when the concentration of reactant increases by a factor of 4, what is the
igomit [66]

The reaction is of order three with respect to the reactant.

<h3>Explanation</h3>

The rate of a reaction of order n about a certain reactant is proportion to the concentration of that reactant raised to the n-th power. This is true only if  concentrations of any other reactants stay constant in the whole process.

In other words, Rate = constant × [Reactant]ⁿ, Rate ∝ [Reactant]ⁿ. (The symbol "∝" reads "proportional to".)

In this question,

[4 × Reactant]ⁿ ÷ [Reactant]ⁿ = 64.

In other words, 4ⁿ = 64, where n is the order of the reaction with respect to this reactant.

It might take some guesswork to find the value of n. Alternatively, n can be solved directly with a calculator using logarithms. Taking natural log of both sides:

\ln{4^n} = \ln{64}\\n\; \ln{4} = \ln{64}\\n = \frac{\ln{64}}{\ln{4}} = 3.

Evaluating \ln(64) / \ln(4) on Google or on a calculator with support for ln (the natural log) will give the value of n- no guesswork required.

n = 3. Therefore, the reaction is of order three with respect to this reactant.

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3 years ago
Lonic bonds form between oppositely charged
fomenos

answer:

ionic bonds form between oppositely charged ions

explanation:

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