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solniwko [45]
3 years ago
11

The variety of organisms within an ecosystem is characteristic of which type of diversity?

Chemistry
2 answers:
a_sh-v [17]3 years ago
7 0

Answer:

c. Species diversity

Explanation:

Because is talking about of organisms, it means, living beings and they are classified like species. There are species of animals and plants

kotykmax [81]3 years ago
3 0

Answer:species diversity

Explanation:

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Wrong answers only!<br><br><br> What color is an orange?
Anastaziya [24]

Answer:

Blue

Explanation:

5 0
2 years ago
Read 2 more answers
A 0.875-g sample of anthracite coal was burned in a bomb calorimeter. The temperature rose from 22.50 to 23.80°C. The heat capac
kherson [118]

Answer:

a) 26.65 kJ was the heat evolved by the reaction.

b) 3.046\times 10^7 kJ is the energy released on burning 1 metric ton  of this type of coal

Explanation:

Heat capacity of the calorimeter = C = 20.5 kJ/°C

Initial temperature of the calorimeter,T_1 = 22.50°C

Final temperature of the calorimeter,T_2 = 23.80°C

The heat evolved by the reaction = Q

Q=C(T_2-T_1)

Q=20.5 kJ/^oC\times (23.80^oC-22.50^oC)

Q=26.65 kJ

26.65 kJ was the heat evolved by the reaction.

0.875 g sample of anthracite coal was burned in a bomb calorimeter

0.875 g sample of anthracite coal gives 26.65 kJ of heat.

1 metric ton= 1000 kg

1000 kg = 1000 × 1000 g = 1,000,000 (1 kg =1000 g)

Then burning 1,000,000 g coal will give:

=\frac{26.65 kJ }{0.875}\times 1,000,000 g=3.046\times 10^7 kJ

3.046\times 10^7 kJ is the energy released on burning 1 metric ton  of this type of coal

8 0
3 years ago
Gold is often used with other metals, such as copper and zinc, to make jewelry. Approximately 58% of the mass of a certain 40 gr
Oduvanchick [21]

Answer:

1.2 cm³.

Explanation:

The following data were obtained from the question:

Mass of neckl = 40 g

Density of gold = 19.3 g/cm³

Volume of gold =..?

Next, we shall determine the mass of the gold in the necklace.

From the question given above, we were told that 58% of the mass of the necklace is gold. Thus, we can obtain the mass of the gold in the necklace as follow:

Mass of neckl = 40 g

Mass of gold =?

Mass of gold = 58% × 40

Mass of gold = 58/100 × 40

Mass of gold = 23.2 g

Therefore, the mass of the gold in the necklace is 23.2 g

Finally, we shall determine the volume of the gold in the necklace as follow:

Density of gold = 19.3 g/cm³

Mass of gold = 23.2 g

Volume of gold =..?

Density = mass /volume

19.3 = 23.2/Volume

Cross multiply

19.3 × Volume = 23.2

Divide both side by 19.3

Volume = 23.2 / 19.3

Volume of gold = 1.2 cm³

Therefore, the volume of the gold in the necklace is 1.2 cm³

4 0
3 years ago
The law of reflection states that if the angle of incidence is 43 degrees, the angle of reflection is ___ degrees.
Vesna [10]

43 degrees

angle of reflection is equal to the angle of incidence

4 0
3 years ago
The movement of one body around another is
Umnica [9.8K]
The answer is Orbit.
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4 years ago
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