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3 years ago

Two factors that determine kinetic energy are

Chemistry

2 answers:

shtirl [24]3 years ago

5 0

The first answer is right

Anna11 [10]3 years ago

4 0

Your answer is mass and speed! Please give me brainlist :)

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Why do we need to balance chemical equations?

Mrrafil [7]

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4 years ago

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What is the density of a gas with a volume of 5.6 FL oz. and a mass of 37 grams?

Assoli18 [71]

Answer:

6.60

Explanation:

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3 years ago

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A potassium bromide solution is 8.30% potassium bromide by mass and its density is 1.03 g/ml. what mass of potassium bromide is

pshichka [43]

Answer: The mass of potassium bromide present in 41.2 mL of solution will be 3.522 grams.

Explanation:

We are given that KBr is present in 8.3% KBr solution, which means that 8.3 grams of potassium bromide is present in 100 gram of the solution.

To calculate the volume of KBr, we use the formula:

$Density=\frac{Mass}{Volume}$

Mass of the solution = 100 grams

Density of KBr solution = 1.03g/mL

Volume of the solution = ? mL

Putting values in above equation, we get:

$1.03g/mL=\frac{100g}{Volume}\\\\Volume=97.08mL$

Now, to calculate the mass of KBr in 41.2mL of the solution, we use unitary method.

In 97.08 mL of solution, mass of KBr present is 8.3 grams.

So, 41.2 mL of solution will contain = $\frac{8.3g}{97.08mL}\times 41.2mL=3.522g$ of KBr.

Hence, the mass of potassium bromide present in 41.2 mL of solution will be 3.522 grams.

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3 years ago

HCl(?) + H2O(?) → H3O+(?) + Cl-(?)

larisa86 [58]

Answer:

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3 years ago

How do water molecules move away from their H-O-H configuration to become new molecules?

maksim [4K]

Answer:

A water molecule is consists of two hydrogen atom, each bound to the central oxygen atom through a covalent chemical bond.

Water molecules can form new molecules by moving away from their H-O-H configuration due to thermal motions and rotations. Thermal motions and rotations break the individual hydrogen bonds and change the H-O-H configuration influenced by the temperature and pressure.

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4 years ago