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Marina86 [1]
3 years ago
9

An envelope could be a source of DNA evidence. True False

Chemistry
2 answers:
yuradex [85]3 years ago
7 0

Answer:

True

Explanation:

DNA can be extracted from bite marks, cigarette buds, postage stamps on envelopes, and envelope flaps for DNA analysis.

Wewaii [24]3 years ago
6 0

Answer:

false. a envelope is what the DNA evidence goes in

Explanation:

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Rewrite each equation below with the delta h value included with either the reactants or he products , and identify the reaction
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I will take a stab at it, but there are not equations, did you forget them?
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write a balanced chemical equation for solid copper reacting with aqueous silver nitrate to produce aqueous copper (II) nitrate
sashaice [31]
Make sure have same amounts of species on both sides
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3 years ago
What decides if an atom will be a cation or an anion?
JulijaS [17]

The loss or gain of electrons

Explanation:

The loss or gain of electrons determines if an atom will become a cation or anion.

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An anion is a negatively charged ion.

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Only electrons can be lost or gained in chemical processes that forms cations and anions.

When a neutral atom gains electron, it has more electrons than protons. This makes it negatively charged and we call it an anion.

When a neutral atom loses an electron, the number of protons is more. We call it a cation.

Learn more:

Cations brainly.com/question/4670413

#learnwithBrainly

7 0
3 years ago
What is the volume of the sphere? Round your answer<br> to the nearest tenth.<br> cm
myrzilka [38]

Answer:

volume

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Explanation:

it isn't specific enough but that is the equation of how to get any volume

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4 0
4 years ago
Why does hydrogen have a -1 oxidation state in the compound NaH?
ruslelena [56]

your answer will be :

B. <u>Na has a lower</u> <u>electronegativity than H</u>

because Na belongs to alkali metals which are least electronegative (most electro positive) but hydrogen is a non metal, it has higher electronegativity as compared to metals like Sodium (Na).

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