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Hunter-Best [27]

3 years ago

7

This condition affects more than 25 million Americans. Often triggered by allergies, this condition causes a constriction of the

airways, labored breathing, and coughing.

1 answer:

gregori [183]3 years ago

8 0

Common sense tells me that it is asthma cause i have it and yeah good luck

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Which of the following is an example of the geosphere interacting with the cryosphere? (5 points)

In-s [12.5K]

erosion is geosphere and glaciers are cyrosphere

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3 years ago

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In an endothermic reaction, the ______ have more energy than the _______.

choli [55]

Answer:

C

Explanation:

If the products have a higher energy level than the reactants then the reaction is endothermic.

In an endothermic reaction, the reaction mixture absorbs heat from the surroundings. Therefore, the products will have a higher energy than the reactants and ΔH will be positive.

In an exothermic reaction, the reaction mixture releases heat to the surroundings. Therefore, the products will have a lower energy than the reactants and ΔH will be negative.

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2 years ago

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An object has a mass of 33g and a volume of 11ml. What is it's density?

astra-53 [7]

Answer:

3g/ml

Explanation:

Density = $\frac{33g}{11ml}$

33 divided by 11 = 3

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3 years ago

Which is the next logical step in balancing the given equation?

Afina-wow [57]

To balance the give n equation, we apply elemtal balance and count each elements per side. There are 2 nitrogens in the left side so there should be 2 moles of NO2. Since there are already 4 moles of O in the right side, there should be 2 moles of O2. Hence answer is a. <span>Place the coefficient 2 in front of oxygen and nitrogen dioxide.</span>

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3 years ago

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

velikii [3]

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

<u>Explanation:</u>

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