2 years ago

Which of the following statements is true?

1 answer:

3 0

The correct answer is C. Atoms are incredibly small and can bearly be seen with the most powerful electron microscopes. The nucleas of an atom contains protons and neutrons with electrons in orbitals around the nucleas. I hope this helps. Let me know if anything is unclear.

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Sound generally travels faster through solids than through gases because the particles (atoms or molecules) of a solid are _____

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Either closer or denser

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3 years ago

What is incorrect in the structure? Check all that apply. The middle hydrogen is surrounded by 4 electrons. Oxygen is surrounded

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Answer: The middle hydrogen is surrounded by 4 electrons, the middle hydrogen is bonded to 2 elements, and there are too many electrons in the final structure are correct.

Explanation: I just did this question and got the correct answers.

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3 years ago

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if a liquid is heated and the temperature at which it boils is measured, the ? property is being measured.

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It would have to be physical property * if this helped you in anyway please be sure to leave a thanks:)

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3 years ago

To which group of the periodic table do lithium and potassium belong?

s344n2d4d5 [400]

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carryonlearing

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2 years ago

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Will mark Brainlest ( molecular weight of ammonium sulphate) step by step

Bond [772]

Answer:

132 amu

Explanation:

ammonium sulphate is $(NH_4)_{2} SO_4$

to calculate molecular weight we need

atomic weight of the element of the compound

here ammonium sulphate is formed by two elements

2 nitrogen , 8 hydrogen , 1 sulphur amd 4 oxygen

atonomic number of nirogen is 14 , hydrogen is 1 , sulphur has 32 and oxygen has 16

so lets calculate molecular weight of ammonium sulphate

2*14 + 8*1 + 1*32 + 4*16

28 + 8 + 32 + 64

132 amu

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3 years ago