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3 years ago

What is the range of 14 and 25

Chemistry

2 answers:

Alexxandr [17]3 years ago

6 0

Range means the difference between the highest and lowest number. So subtract 25 - 14 which gives you 11.

Law Incorporation [45]3 years ago

3 0

For the range, you subtract 25 from 14, which is 11.

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What is the <br> Electronegativity of sugar

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Answer:In order for a molecule to have polarity it must have an electronegativity difference of 0.5-1.7. There is polarity within sucrose because of oxygen-hydrogen and oxygen-carbon. Oxygen-hydrogen is polar because a electronegativity of 1.2 is created (O=3.4 H=2.2-----> 3.4-2.2=1.2); this is a polar molecule.

Explanation:

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3 years ago

Bubbling ammonia into a solution of bromic acid will produce what salt?

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3 years ago

The escape velocity from Earth's surface is 1.12 x 104 meters per second. At this speed, how many kilometers would a

Sati [7]

Answer:

2016 km

Explanation:

The escape velocity from Earth's surface is $1.12\times 10^4\ m/s$ .

We need to find how many kilometers would a rocket travel in three minutes. It is a concept based on the definition of speed of an object.

Speed = distance per unit time

1 hour = 60 minutes

⇒ 3 minutes = 0.05 hour

1 m/s = 3.6 km/h

11200 m/s = 40320 km/h

So,

$\text{distance}, d=v\times t\\\\d=40320\ km/h \times 0.05\ h\\\\d=2016\ km$

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3 years ago

Explain how scientists use balanced chemical equations and molar mass concepts to represent reactions and account for the amount

konstantin123 [22]

Explanation:

Scientists most especially chemists use the mole concepts through balanced chemical equations and molar masses to represent chemical reactions and account for the amount of substances.

The mole concept entails finding molar relationships between reactants and products in a chemical reaction. Mole connects difference chemical parameters and it is used in quantitative analysis of chemical reaction.

First, we work from the known to the unknown.
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Number of moles = $\frac{mass}{molar mass}$

After obtaining the number of moles, then go ahead to compared using the balanced reaction with that of the unknown.
Then from them find the mass of the unknown.

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3 years ago