3 years ago

Predict the effect of a mutation which limits the production of pigment in hair

Chemistry

1 answer:

pogonyaev3 years ago

8 0

Answer:

Explanation:

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To decrease the rate of reaction you would ... *

STALIN [3.7K]

Answer: it’s number 2 add a catalyst

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3 years ago

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A train approaching a crossing changes speed from 10 m/s to 25 m/s in 240 s. How can the train's acceleration be described?

Gemiola [76]

Answer:

$\boxed{\text{The train is speeding up by 0.0625 m/s every second}}$

Explanation:

Acceleration (a) is the change in velocity (Δv) divided by the change in time (Δt).

$a = \frac{\Delta v}{\Delta t} = \frac{v_{2} - v_{1} }{t_{2} - t_{1}} \\\\a = \frac{25 - 10}{240 - 0}=\frac{15 }{240}=\text{0.0625 m/s}^{2}\\\\\ \boxed{\textbf{The train is speeding up by 0.0625 m/s every second}}\\$

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3 years ago

Why is water considered to be a universal solvent?

Lapatulllka [165]

<span>Water is nonpolar covalent, so all substances dissolve in it. </span>

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4 years ago

How much energy is required to raise the temperature of 3 kg of iron from 20°

Vinvika [58]

Answer:

Option C (6750 J) is the appropriate response.

Explanation:

The given values are:

Mass of iron,

m = 3 kg

Specific heat capacity,

$c_A$ = 0.450

Temperature,

T = $25-20$

= $5^{\circ}C$

Now,

⇒ $Q=mc_A T$

On substituting the values, we get

⇒ $=3\times 0.450\times 5$

⇒ $=6.75$

i.e,

⇒ $=6750 \ J$

8 0

3 years ago

What elements form between polar covalent?

Ket [755]

Answer:

Nonmetal + nonmetal

Explanation:

Since it's a covalent bond, the bond is formed between two nonmetals, just like a regular covalent bond. However, the 'polar' just means that there is an overall dipole moment.

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4 years ago