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love history [14]
3 years ago
6

(science)

Chemistry
2 answers:
Simora [160]3 years ago
7 0
The answer is B element symbols
ra1l [238]3 years ago
6 0

Answer:

b. . the element symbol

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Which is NOT part of the definition of matter
qaws [65]

Answer:

Everything that has mass and takes up space is matter. Every day, you find something usual that either does't have mass or else don't take up space. Those things are non-matter. Basically, any type of energy or any abstract concept is an example of something that does not have matter.

Explanation:

7 0
3 years ago
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Is it really possible for humans not to alter the natural world around them?
tankabanditka [31]

Answer: I'm sure it's possible but we too lazy

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Iron Choose one: A. is alloyed with carbon and chromium to make stainless steel. B. was the first of the common metals (iron, al
Lostsunrise [7]

Answer:

A. is alloyed with carbon and chromium to make stainless steel.

Explanation:

Steel is an alloy formed mainly of iron and carbon but some other metals like chromium are also added in little amounts.

Is steel, the percentage of iron and carbon together is about 90% and the rest metals fall in the 10% part.

Although the cost of steel is low, it has a very high tensile strength and that's why it is used in tools, ships, buildings, trains and in various types of infrastructures.

7 0
2 years ago
Select the supplements that are minerals.
Jet001 [13]
<h3> The supplements that are minerals are</h3>
  1. calcium
  2. sodium
  3. iron
  4. zinc

<u><em> Explanation</em></u>

  • calcium   and sodium  are major  minerals   which are required  by the body for

      calcium-  needed  for muscle,hearing bone and  for the support of synthesis and function of cells

     sodium-   is needed to control blood  pressure  and  also for proper  muscle and nerve  function

  • Zinc  and iron are  required   in trace and both are needed for good health



3 0
3 years ago
Calculate the energy required to heat 406.0mg of cyclohexane from 33.5°C to 38.9°C . Assume the specific heat capacity of cycloh
N76 [4]

Answer:

Q = 4.056 J

Explanation:

  • Q = m<em>C</em>ΔT

∴ m = 406.0 mg = 0.406 g

∴ <em>C </em>= 1.85 J/g.K

∴ T1 = 33.5°C ≅ 306.5 K

∴ T2 = 38.9°C = 311.9 K

⇒ ΔT = 311.9 - 306.5 = 5.4 K

⇒ Q = (0.406 g)(1.85 J/gK)(5.4 K)

⇒ Q = 4.056 J

6 0
2 years ago
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