Which atmospheric gas is used by plants and given off by animals

An object was placed into a container of water the arrow shows the thermal energy is flowing from the water to the object what i

posledela

Answer:

The valid conclusion is:

D. the temperature of the object is increasing, while the temperature of the water is decreasing

Explanation:

The answer choices are:

A. the temperature of the object is decreasing, while the temperature of the water is increasing
B. the temperature of the object is decreasing, while the temperature of the water is decreasing
C. the temperature of the object is increasing, while the temperature of the water is increasing
D. the temperature of the object is increasing, while the temperature of the water is decreasing

<h2>Solution</h2>

Thermal or heat energy always flows from the hotter substances to the cooler substances.

Thus, since the arrows show that the thermal energy is flowing from the water to the object, the water is losing thermal energy and the object is gaining thermal energy.

When an object gains thermal energy, and there is not involved a change of phase, the temperature of the object increases. Thus, the temperature of the object is increasing.

On the other hand, since water is losing thermal energy, and there is not involved a change of phase, the temperature of the water decreases.

Therefore, the correct conclusion is described by the option A:

A. the temperature of the object is decreasing, while the temperature of the water is increasing

3 0

3 years ago

Carbon monoxide (CO) is a poisonous gas because it binds very strongly to the oxygen carrier hemoglobin in blood. A concentratio

velikii [3]

Answer: The amount of CO that is occupied in the room is $1.98\times 10^3L$

Explanation:

We are given:

Concentration of CO = $8.00\times 10^2ppm=800pm$ by volume

This means that $800\mu L\text{ or }800\times 10^{-6}$ of CO is present in 1 L of blood

To calculate the volume of cuboid, we use the equation:

$V=lbh$

where,

V = volume of cuboid

l = length of cuboid = 10.99 m

b = breadth of cuboid = 18.97 m

h = height of cuboid = 11.89 m

$V=10.99\times 18.97\times 11.89=2478.83m^3$

Converting this into liters, by using conversion factor:

$1m^3=1000L$

So, $2478.83m^3=2.479\times 10^6L$

Applying unitary method:

In 1 L of blood, the amount of CO present is $800\times 10^{-6}$

So, in $2.479\times 10^6L$ of blood, the amount of CO present will be = $\frac{800\times 10^{-6}}{1}\times 2.479\times 10^{6}=1983.2L=1.98\times 10^3L$

Hence, the amount of CO that is occupied in the room is $1.98\times 10^3L$

8 0

3 years ago

Help? I'll give 20 points!!!!!!

natima [27]

The answer is A. Two molecules of potassium chloride react with one molecule of lead nitrate to form two molecules of potassium nitrate and one molecule of lead chloride.

4 0

3 years ago

What element has 12 protons, 12 neutrons and 12 electrons?

bija089 [108]

Answer:

magnesium atom

The most common and stable type of magnesium atom found in nature has 12 protons, 12 neutrons, and 12 electrons

6 0

3 years ago

A chunk of ice breaks off a glacier and falls 30.0 m before it hits the water. Assuming it falls freely (there is no air resista

lina2011 [118]

Answer: