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3 years ago

Engineers find a new metal that is stronger than steel but much lighter. This

Chemistry

2 answers:

user100 [1]3 years ago

7 0

Answer:

Explanation:

I think they would design a airplane with this new metal first because they have to find the right balance for this new type of metal. They can't just sell a airplane with a new metal that has a different weight immediately they need to test it and design it first.

Tatiana [17]3 years ago

5 0

Answer:

Explanation:

The answer is D, because while it is important to market the material and make sure people are interested in buying, they first need to try and design a plane using this material. There is no use selling a plane made out of this material, if a plane cannot be built.

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For the following reaction, identify whether the compound in bold is behaving as an acid or a base.

harina [27]

Answer: acid

Explanation: it dissolves in water to produce hydronium ion as the only positive ion

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3 years ago

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Kisachek [45]

Answer:

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3 years ago

d) A short ton of coal holds about 2.24 x 107 J of energy and costs about $56.45 per short ton. How many Joules of energy in the

Feliz [49]

Answer:

396811.337 J

Explanation:

The cost of one short ton of coal = $56.45

The energy related to the short ton of coal = $2.24\times 10^{7}\ J$

Thus, As according to the question,

$56.45 of coal have $2.24\times 10^{7}\ J$ of energy.

$1 of coal have $\frac{2.24\times 10^{7}}{56.45}\ J$ of energy.

<u>The amount of energy = 396811.337 J</u>

4 0

3 years ago

An someone help me with this

valina [46]

2)c

3)b

4)c

5)a

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6)a

7)c

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3 years ago

Read 2 more answers

Many homeowners treat their lawns with CaCO3(s) to reduce the acidity of the soil. Write a net ionic equation for the reaction o

Aliun [14]

Many homeowners treat their lawns with CaCO3(s) to reduce the acidity of the soil. The net ionic equation for the reaction of CaCO3(s) with a strong acid, HCl (I chose HCl because it is a strong acid) is CaCO3(s) +2 HCl(aq) → CaCl2(s) + H2O(aq) + CO2(g).

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3 years ago