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Nutka1998 [239]
2 years ago
9

Predict what would happen if plants disappear?

Chemistry
1 answer:
Yakvenalex [24]2 years ago
7 0

Answer:

All secondary consumers will die because they will lose their food source

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The total mass of the reactants is ________ the total mass of the products in a chemical reaction.
jonny [76]

Answer:

The total mass of the reactants is <u>equal to </u>  the total mass of the products in a chemical reaction.

Explanation:

5 0
3 years ago
Which concept can explain the acidic character of Carbon dioxide?​
Mamont248 [21]

Answer:

The concept of lewis acids and bases can explain the acidic nature of CO2. A lewis acid is a compound which can accept an electron pair whereas a lewis base is a compound which can donate an electron pair. CO2 acts as a lewis acid.

5 0
2 years ago
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When the products of a reaction are hotter than the reactants: The reaction is exothermic. The reaction is endothermic. The reac
AlekseyPX
<span>Exothermic reaction evolves energy due to which products get hot...</span>
3 0
3 years ago
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Air has a mass of 1.2g and a volume of 4,555ml. What is the density
coldgirl [10]

Answer:

<h2>Density = 0.00026 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

<h3>Density(\rho) =  \frac{mass}{volume}</h3>

From the question

mass of air = 1.2 g

volume = 4,555 mL

Substitute the values into the above formula and solve for the density

That's

<h3>Density =  \frac{1.2}{4555}</h3>

= 0.0002634

We have the final answer as

<h3>Density = 0.00026 g/mL</h3>

Hope this helps you

3 0
3 years ago
Convert 27.7 kilometers to centimeters.
Stolb23 [73]

Answer:

The correct answer is - 2770000 cm.

Explanation:

1 kilometer = 1000 meter

1 meter = 100 centimeter

1 kilometer = 100*1000 cm

1 km = 100000 cm.

then,

27.7 kilometers = 2.77 × 10^6 centimeters

So, 27.7 kilometers = 27.7 × 100000

= 2.77 × 106 or 2770000 centimeters.

7 0
2 years ago
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