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miskamm [114]
3 years ago
8

Which of the following is one way to prevent the corrosion of iron

Chemistry
1 answer:
Nataly_w [17]3 years ago
6 0
A way to protect iron corrosion is to paint the Iron with layers of protective paint and coating.
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Type the correct answer in the box.
IgorLugansk [536]

Answer:

a= <em>In scientific notation</em>

6.96000×10⁵ Km

b =<em>In  expanded notation</em>

0.00019 mm

Explanation:

Given data:

Radius of sun = 696000 Km

size of bacterial cell = 1.9 ×10⁻⁴ mm

Radius of sun in scientific notation = ?

Size of bacterial cell in expanded notation = ?

Solution:

Scientific notation is the way to express the large value in short form.

The number in scientific notation have two parts.

. The digits (decimal point will place after first digit)

× 10 ( the power which put the decimal point where it should be)

for example the number 6324.4 in scientific notation will be written as = 6.3244 × 10³

Radius of sun:

696000 Km

<em>In scientific notation</em>

6.96000 × 10⁵ Km

The expanded notation is standard notation of writing the numerical values which is normal way. The numbers are written as they are, without the power of 10.

Size of bacterial cell:

1.9 ×10⁻⁴ mm

<em>In  expanded notation</em>

1.9/ 10000 = 0.00019 mm

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When Lithium-7 loses 1 electron it
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If it loses an electron, it will become an ion.

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A group of students is investigating whether aluminum is a better thermal conductor than steel. The students take an aluminum wi
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The students have conducted an experiment to check their hypothesis on the thermal conductivity of two metals; Aluminum and steel. The experimental observations have been noted, and the next step based on the scientific procedure is to analyze the data.

Analysis of data suggests that; since the length of wax after 10 min is lower in Al than steel, aluminum is a better thermal conductor.

Ans B) Analyze the data

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Answer:

gametes are sperm and an egg individually. when the gametes come together and fertilize, they form a zygote.

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Explain briefly the function of friction ridges on our palm and finger.​
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