3 years ago

Hurry please need fast

Chemistry

1 answer:

Nina [5.8K]3 years ago

7 0

I think it might be 2 but I could be mistaken sorry if I am

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Tuning a musical instrument like a guitar change the what?

Scrat [10]

When you are tuning an instrument it changes the sound of the instrument

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3 years ago

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analysis of a compound indicates that it contains 1.04 grams K 0.70 g Cr and 0.86 g O. Find its empirical formula

MrMuchimi

1.04gK*1molK/39.01g K= 0.0267 mol K
0.70gCr*1mol/52.0g Cr = <span>0.0135 mol Cr
0.86 gO* 1 mol/16.0 g O = 0.0538 mol O
</span>0.0267 mol K/0.0135 = 2 mol K
0.0135 mol Cr /0.0135= 1 mol Cr
0.0538 mol O/0.035= 4 mol Cr
K2CrO4

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3 years ago

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How many Liters of 0.968M solution can be made if 0.581 moles of solute are added? Group of answer choices 0.600 L 60 mL 0.562 L

Rzqust [24]

Answer:

0.6L

Explanation:

The formula of molarity is molSolute/litreSolution

$0.968M=\frac{0.581}{LitreSolution} \\\\LitreSolution=\frac{0.581}{0.968} \\LitreSolution=0.6L$ .

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4 years ago

A student was conducting an experiment in the laboratory that had a temperature of 272 °C. The student needed to log the tempera

lozanna [386]

Answer:

d 545K

Explanation:

0°C = 273K

so, 272°C = (273+272)K

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2 years ago

The starting materials in a chemical reaction are called

Wewaii [24]

<h2>Hello!</h2>

The answer is: The starting materials in a chemical reaction are called reactants... or can be called reagents too.

The principal component in a chemical reaction are the reactants, after the reaction, we have the products and we could have reactants too (if they are not completed consumed).

For example, given the following reaction:

$2C2H6+7O2 = 4CO2 + 6H2O$

Reactants are: 2C2H6 and 7O2

Products are: 4CO2 and 6H2O

Have a nice day!

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4 years ago

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