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alexandr1967 [171]

3 years ago

13

Which statement describes a physical property of steel? O A. Steel is formed from an alloy of iron and carbon. O B. Steel has a

density of 8050 kg/m3. O C. Steel is oxidized by air to form rust. O D. Steel reacts with sulfuric acid to form hydrogen gas.

2 answers:

luda_lava [24]3 years ago

7 0

Answer:

A

Explanation:

fomenos3 years ago

5 0

Answer:

qualification require for that profession

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What does 2Cl mean?

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Answer: I think that you have to find it in your lesson

Explanation:

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3 years ago

For each row in the table below, decide whether the pair of elements will form a molecular or ionic compound. If they will, then

Olin [163]

Answer:

$\begin{array}{cccll}\textbf{Element 1} & \textbf{ Element 2} &\textbf{Compound?} &\textbf{Formula} &\textbf{Type}\\\text{Ar}&\text{Xe} &\text{No} &\text{None}&\text{Neither}\\\text{F}& \text{Cs} &\text{Yes} &\text{CsF} &\text{Ionic}\\\text{N} &\text{Br} &\text{Yes} & \text{NBr}_{3}&\text{molecular} \\\end{array}$

Explanation:

You look at the type of atom and their electronegativity difference.

If ΔEN <1.6, covalent; if ΔEN >1.6, ionic

Ar/Xe: Noble gases; no reaction

F/Cs: Non-metal + metal; ΔEN = |3.98 – 0.79| = 3.19; Ionic

N/Br: Two nonmetals; ΔEN = |3.04 - 2.98| = 0.

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3 years ago

Which of the following is true about the mass of atoms?

san4es73 [151]

Answer:

i think the answer is C , atom mass increases with temperature

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3 years ago

The density of water is 1.00 gram/milliliter. What is the volume in milliliters of 1.00 mole of water? Express your answer to th

Kay [80]

Answer: 18.0152 milliliters

Explanation:

Hi, to answer this question we have to apply the next formula:

Water volume = water mass / water density

Since 1 mol of water weights 18.0152 grams

Replacing with the values and solving:

Water volume = 18.0152 g / 1 g /ml = 18.0152 milliliters

Feel free to ask for more if needed or if you did not understand something.

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4 years ago

................................................................................................................................

viktelen [127]

Answer:

HmmmmmmmmmmI think the answer is 69

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3 years ago

Read 2 more answers