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larisa [96]
3 years ago
5

Which law of motion accounts for the following statement? "A car requires brakes in order to stop." first law second law third l

aw
Chemistry
2 answers:
Alona [7]3 years ago
8 0

Answer:

(A) FIRST LAW.

Explanation: HOPE THIS HELPS !

Oksi-84 [34.3K]3 years ago
5 0
<span>The statement ‘A car requires brakes in order to stop’ follows Newton’s first law of motion: the Law of Inertia. The car will stop if there is a brake. This is similar to the first law wherein an object stays at rest unless a force is acted upon it.</span>
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4 0
1 year ago
A metal oxide with the formula mo contains 15.44% oxygen. in the box below, type the symbol for the element represented by m.
lana66690 [7]

<u>Answer:</u> The element represented by M is Strontium.

<u>Explanation:</u>

Let us consider the molar mass of metal be 'x'.

The molar mass of MO will be = Molar mass of oxygen + Molar mass of metal = (16 + x)g/mol

It is given in the question that 15.44% of oxygen is present in metal oxide. So, the equation becomes:

\frac{15.44}{100}\times (x+16)=16g/mol\\\\(x+16)=\frac{16g/mol\times 100}{15.44}\\\\x=(103.626-16)g/mol\\\\x=87.62g/mol

The metal atom having molar mass as 87.62/mol is Strontium.

Hence, the element represented by M is Strontium.

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3 years ago
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Naya [18.7K]

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4 0
2 years ago
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