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3 years ago

The si unit for distance is ?

2 answers:

6 0

The SI unit for distance is metres - m.

The SI unit for speed or velocity is metres per second - m/s.

The SI unit for acceleration is metres per second squared. - m/s^2.

slega [8]3 years ago

4 0

Answer:

Explanation:

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Phosphoric acid, which is commonly used as rust inhibitor, food additive and etching agent for dental and orthopedic use, can be

Sphinxa [80]

Answer:

$P_4_{(I)}+5O_2_{(g)}+6H_2O_{(l)}\rightarrow +4H_3PO_4_{(l)}$

Explanation:

The first step is:

$P_4_{(I)}+5O_2_{(g)}\rightarrow 2P_2O_5_{(g)}$

Second step is:

$P_2O_5_{(g)}+3H_2O_{(l)}\rightarrow 2H_3PO_4_{(l)}$

Multiplying second step by 2, and adding both the steps, we get that:

$P_4_{(I)}+5O_2_{(g)}+2P_2O_5_{(g)}+6H_2O_{(l)}\rightarrow 2P_2O_5_{(g)}+4H_3PO_4_{(l)}$

Cancelling common species, we get that:

$P_4_{(l)}+5O_2_{(g)}+6H_2O_{(l)}\rightarrow +4H_3PO_4_{(l)}$

6 0

3 years ago

A molecule has the empirical formula C4H6O. If its molecular weight is determined to be about 212 g/mol, what is the most likely

krok68 [10]

Answer:

The molecular formula is C12H18O3

Explanation:

Step 1: Data given

The empirical formula is C4H6O

Molecular weight is 212 g/mol

atomic mass of C = 12 g/mol

atomic mass of H = 1 g/mol

atomic mass of O = 16 g/mol

Step 2: Calculate the molar mass of the empirical formula

Molar mass = 4* 12 + 6*1 +16

Molar mass = 70 g/mol

Step 3: Calculate the molecular formula

We have to multiply the empirical formula by n

n = the molecular weight of the empirical formula / the molecular weight of the molecular formula

n = 70 /212 ≈ 3

We have to multiply the empirical formula by 3

3*(C4H6O- = C12H18O3

The molecular formula is C12H18O3

3 0

3 years ago

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For ___, 2 lobes have positive signs while the other 2 have negative signs, showing that the opposite lobes of have same sign.

notsponge [240]

Answer:d orbitals

Explanation: just trustme

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3 years ago

What feature of New York is located about 44°N, 74°W?

galben [10]

The Adirondacks is located there

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2 years ago

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PEOPLE WHO BUY GOODS AND SERVICES ARE OF GROUP OF DECSION MAKERS CALLED?

Bumek [7]

75% i think it is consumers
25% i think it is producer

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3 years ago