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4 years ago

Why are two sides different color on a frog

2 answers:

8 0

Frogs change color to help hide from predators by matching the colors of their surroundings. The also change color to help control their body temperature as some colors absorb more or less light and can cool or warm them up.

Ilia_Sergeevich [38]4 years ago

3 0

"The Dorsal surface is a green color and has spots. The Ventral surface is a lighter green color. It helps them camouflage itself from predators. The bottom of the frog is a lighter color then the top" So to camouflage themselves they adapted over time to have this certain coloring difference on their skin to adapt to their environment and survive.

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Solid iron is mixed with a solution of copper (I) nitrate to form iron (III) nitrate solution and metal copper. (what is the equ

DedPeter [7]

Answer:

Fe + 3CuNO₃ → Fe(NO₃)₃ + 3Cu

Explanation:

Solid Iron = Fe

Copper (I) nitrate = CuNO₃ (Nitrate, NO₃⁻, always has a charge of -1).

Iron (III) nitrate = Fe(NO₃)₃ (That way the compound has an overall neutral charge)

Metal Copper = Cu

Writing the equation using symbols leaves us with:

Fe + CuNO₃ → Fe(NO₃)₃ + Cu

It is not balanced yet. Now we balance the NO₃ species on the left side:

Fe + 3CuNO₃ → Fe(NO₃)₃ + Cu

Finally we balance the Cu species on the right side:

Fe + 3CuNO₃ → Fe(NO₃)₃ + 3Cu

5 0

3 years ago

What are the missing coefficients for the skeleton equation below? Cr(s) + Fe(NO3)2(aq) → Fe(s) + Cr(NO3)3(aq)

postnew [5]

Answer:

2 3 3 2

Explanation:

7 0

3 years ago

An FAS calibration curve (absorbance, y-axis vs. FAS in g/mL) gave an equation he regression line of: y-3678(x)+0.056. If an unk

mezya [45]

Answer:

FAS concentration = 1.61*10^-4M

Explanation:

Beer Lambert's law relates the absorbance (A) of a substance to its concentration (c) as:

$A = \epsilon lc----(1)$

where ε = molar absorption coefficient

l = path length

A plot of 'A' vs 'c' gives a straight line with slope = εl

In addition absorbance (A) is related to % Transmittance (%T) as:

A = 2-log%T----(2)

For the FAS solution, the corresponding calibration fit is given as:

y = 3678(x) + 0.056

This implies that the slope = εl = 3678

It is given that %T = 25.6%

$A = 2-log(25.6)=0.592$

Based on equation(1):

$c = \frac{A}{\epsilon l}=\frac{0.592}{3678}=1.61*10^{-4}M$

8 0

3 years ago

How does Controlled fires help prevent real forest fires?

Salsk061 [2.6K]

Answer:

it burns things which would be burned easily by lightning, and then people put the fire out immediately. If the dried plants that they are lighting on fire are hit by lightning, it can lead to a massive fire without anyone realizing.

6 0

3 years ago

Do gold and silver have the same extensive properties

Pepsi [2]

Answer:

They do not

Explanation:

Gold is more advanced

8 0

4 years ago

Read 2 more answers