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4 years ago

Fabric it is useful or harmful

Chemistry

2 answers:

GalinKa [24]4 years ago

6 0

Answer:

useful of course because u wont be able to pick up any thing

Ghella [55]4 years ago

5 0

Fabric can be both useful and harmful.

Fabric can be useful for...

Making clothing.
Made into rags.
And many more ways.

Fabric can be harmful in these ways...

Small pieces can be choked on by toddlers.
It can get wrapped around your neck.
And many wore ways.

<em>Hope i helped!</em>

<em>May I have brainliest?</em>

$\huge\boxed{Thanks,\;Plip.}$

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Calculate the mass of glucose metabolized by a 60.0 −kg person in climbing a mountain with an elevation gain of 1550 m . Assume

lbvjy [14]

Answer:

Mass of glucose = 515.34 g

Explanation:

We are given;

Mass; m = 60 kg

Elevation; h = 1550 m

Acceleration due to gravity; 9.8 m/s²

Now, work performed to lift 60kg by 1550m is given by the formula;

W = mgh

W = 60 × 9.8 × 1550

W = 911400 J

We are told the actual work is 4 times the one above.

Thus;

Actual work = 4W = 4 × 911400 = 3,645,600 J

Now,

Molar mass of Glucose(C6H12O6) = 180 g/mol

We are given standard enthalpy of combustion = -1273.3 KJ/mol = -1273300

Moles of glucose = 3645600/1273300 = 2.863mol

Mass of glucose = 2.863 mol × 180 g/mol

Mass of glucose = 515.34 g

4 0

4 years ago

A possible mechanism for the overall reaction Br2 (g) + 2NO (g) → 2NOBr (g) is NO (g) + Br2 (g) rightwards arrow with k space 1

omeli [17]

Answer : The rate law for formation of NOBr based on this mechanism is, $\frac{k_1\times k_2}{k_1^-}[Br_2][NO]^2$

Explanation :

The overall reaction is:

$Br_2(g)+2NO(g)\rightleftharpoons 2NOBr(g)$

Rate law = $k[Br_2][NO]^2$

The first step of the overall reaction is:

$NO(g)+Br_2(g)\overset{k_1}{\rightarrow} NOBr_2(g)$

$NO(g)+Br_2(g)\overset{k_1^-}{\leftarrow} NOBr_2(g)$

Rate law 1 = $k_1[Br_2][NO]$

Rate law 2 = $k_1^-[NOBr_2]$

The second step of the overall reaction is:

$NOBr_2(g)+NO(g)\overset{k_2}{\rightarrow} 2NOBr$

Rate law 3 = $k_2[NOBr_2][NO]$

Now rate law of overall reaction can be obtained as follows.

We are multiplying rate law 1 and rate law 3 and dividing by rate law 2, we get:

Rate law = $\frac{[k_1[Br_2][NO]]\times [k_2[NOBr_2][NO]]}{[k_1^-[NOBr_2]]}$

Rate law = $\frac{k_1\times k_2}{k_1^-}[Br_2][NO]^2$

Rate law = $k[Br_2][NO]^2$

The rate law for formation of NOBr based on this mechanism is, $\frac{k_1\times k_2}{k_1^-}[Br_2][NO]^2$

4 0

3 years ago

True or False: In a chemical reaction, the same reactants produce the same products.

ZanzabumX [31]

Answer:

During a chemical reaction, the chemical species that are undergoing the transformation (or that are present in the starting) are called reactants, and the new species formed after the transformation are called the products.

Explanation:

Hope this is helpful! :)

7 0

2 years ago

What Is atomic radius

lesya692 [45]

Answer:

The atomic radius is the measure of the size of its atoms.

~batmans wife dun dun dun...

3 0

4 years ago

Read 2 more answers

Does the metals determine how high or low voltage is in fruit battery?

lesantik [10]

Answer: 1.788 volts.

Explanation:

To solve this problem we can combine battery cells to create higher voltages. Building more lemon batteries and connecting them with a metal wire from "+" to "-" adds the voltage from each cell. The two lemon batteries above, combine to produce a voltage of 1.788 volts.

3 0

3 years ago

Fabric it is useful or harmful​

Fabric it is useful or harmful