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dedylja [7]
3 years ago
6

On a victim, a circular entrance wound with black edges is found. Which most likely caused this wound?

Chemistry
2 answers:
castortr0y [4]3 years ago
4 0

The answer is D. my friend :)

max2010maxim [7]3 years ago
4 0

a pistol fired at close range with leave the black mark on the skin the correct answer is d

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How would one convert 15 seconds to hours?
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Explanation:

a ...15 seconds×(3600 seconds hour)

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What is the molarity of a solution that contains 17g of NH₃ in 0.50L of solution?
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Because molarity is mol/L, we'll have to convert 17g to mol.

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Lana balanced an equation so that the result was 2C2H3Br + 5O2 → 4CO2 + 2H2O + 2HBr. Which most likely represents the starting e
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Answer:

C2H3Br + O2 → CO2 + H2O + HBr

Explanation:

The term balancing of chemical reaction equation has a unique meaning in chemistry. What it actually means is to ensure that the number of atoms of each element on the left hand side of reaction equation becomes equal to the number of atoms of the same element on the right hand side of the reaction equation.

When we look at the equation; C2H3Br + O2 → CO2 + H2O + HBr, the number of atoms of each element on the left and right hand sides of the given equation are not the same hence the equation is unbalanced.

If we look at the equation; 2C2H3Br + 5O2 → 4CO2 + 2H2O + 2HBr, the number of atoms of each element on both sides of the reaction equation are now equal, thus the later equation is the balanced version of the former.

6 0
3 years ago
Which particle makes the atom an unstable isotope?
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6 0
2 years ago
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-169°C to -104°C

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Ethene, also known as ethylene exists in solid, liquid and gaseous states. Ethene is an aliens with condensed structural formula C2H4. Athens is a colourless gas. It is flammable and is also a sweet smelling gas in its pure form. It is the monomer in the production of polyethylene which is of great importance in the plastic industry. In agriculture, it is used to induce the ripening of fruits. It can be hydrated in order to produce ethanol.

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4 0
3 years ago
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