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maks197457 [2]
3 years ago
10

A scientist found a new species in a rain forest. The species was small and green in color. She examined one of its many cells a

nd found that the cell had a nucleus but no cell wall.
Chemistry
2 answers:
Serhud [2]3 years ago
7 0
It's probably animal if that's what's you're asking.
notsponge [240]3 years ago
3 0

Answer:

animals

Explanation:

because it is multicellular with no cell wall

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How many pounds of ice are required to absorb 4900 kJ of heat as the ice melts? The heat of fusion of water is 0.334 kJ/g.
Goshia [24]

Answer:

m = 32.34 pounds of ice.

Explanation:

In this case we need to use the following expression of heat:

q = m * ΔHf   (1)

Where:

q: heat absorbed in J or kJ

m: mass of the compound in g

ΔHf: heat of fusion of the water in kJ/g

We are asked to look for the mass of ice in pounds, so after we get the grams, we need to convert the grams to pounds, using the following conversion:

1 pound --------> 453.59 g   (2)

So, we have the heat and heat of fusion, from (1) let's solve for the mass, and then, using (2) the conversion to pounds:

q = m * ΔHf  

m =  q / ΔHf

m = 4900 / 0.334 = 14,670.66 g of ice

Now, the conversion to pounds:

m = 14,670.66 g * 1 pound/453.59 g

<h2>m = 32.34 pounds of ice.</h2>

Hope this helps  

5 0
2 years ago
In which of the following cases does the reaction go to farthest to completion ?
Mashcka [7]

Answer:

k=10^{3}

Explanation:

k stand for equilibrium constants in terms of reaction

The higher the value of an equilibrium constant the faster the equilibrium reaction comes to completion.

Consider the example below:

R_{1}\ + R_{2}⇄P_{1}\ + P_{2}

where

The\ equilibrium\ constant\ K = \frac{P_{1}P_{2}}{R_{1}R_{2}}

For a faster reaction the numerator i.e. the right hand side of the equation have to be higher than the left hand side (the denominator). therefore the higher the numerator, the higher the value of the equilibrium constant and the faster the reaction get to completion thus option c is correct.

5 0
2 years ago
An atom can act as a tiny magnet due to the spinning motion of charged particles called neutrons. Please select the best answer
Tatiana [17]
Falso porque los neutrones no tienen carga
7 0
3 years ago
What is hydrogenation​
Anastasy [175]

Answer:

Hydrogenation – meaning, to treat with hydrogen – is a chemical reaction between molecular hydrogen and another compound or element, usually in the presence of a catalyst such as nickel, palladium or platinum. The process is commonly employed to reduce or saturate organic compounds

Explanation:

7 0
3 years ago
Read 2 more answers
When water vapor condenses, how much heat energy will be released into the atmosphere?
Leona [35]
<span><span>When water vapor condenses, 2260 joules/gram heat energy will be released into the atmosphere.

To add, </span>heat energy<span> <span>(or </span>thermal energy<span> or simply </span>heat) is defined as a form of energy<span> which transfers among particles in a substance (or system) by means of kinetic </span>energy<span> of those particles. In other words, under kinetic theory, the </span>heat<span> is transferred by particles bouncing into each other.</span></span></span>
3 0
2 years ago
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