Several balls and sticks glued together to represent a molecule

Chemistry

1 answer:

rewona [7]2 years ago

4 0

Answer:

The different elements are represented by their symbols one line shows a single bond and two lines show a double bond. This written representation is called a structural diagram

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Calculate the number of milligrams to 0.425 kg

sp2606 [1]

Answer:

Explanation:

as we know that 1kg =1,000,000 mg

therefore

0.425 kg= 0.425*1,000,000/1=425000

result:

0.425 kg contain 425000 mg

i hope this will help you

4 0

3 years ago

A sample of a monoprotic acid (ha) weighing 0.384 g is dissolved in water and the solution is titrated with aqueous naoh. if 30.

posledela

The formula for the monoprotic acid is taken as HA, reaction with base is as follows;
HA + NaOH ---> NaA + H₂O
Stoichiometry of acid to base is 1:1
At the neutralisation point, number of HA moles = number of base moles
Number of NaOH moles reacted = 0.100M / 1000 mL /L x 30.0 mL = 0.003 mol
Therefore number of HA moles reacted = 0.003 mol
the mass of acid 0.384 g
Therefore molar mass - 0.384 g/ 0.003 mol = 128 g/mol

3 0

3 years ago

How does the modern periodic table arrange elements?

katrin2010 [14]

By increasing atomic number

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3 years ago

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The table above lists the wavelength range, frequency range, possible uses, and hazards of the seven types of electromagnetic ra

marusya05 [52]

Answer: A. Gamma Ray

Explanation:

X-ray scans can diagnose possibly life-threatening conditions such as blocked blood vessels, bone cancer, and infections. However, x-rays produce ionizing radiation—a form of radiation that has the potential to harm living tissue. However, the risk of developing cancer from radiation exposure is generally small.

Please mark brainliest if it helped :)

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2 years ago

How are the three isotopes of carbon the same ?

kondor19780726 [428]

Answer:

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Explanation:

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3 years ago