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olga55 [171]
3 years ago
15

What represents a community? pond B a snail snails D snails, guppies and plants

Chemistry
1 answer:
OLga [1]3 years ago
7 0

D snails, guppies and plants. The community should be diverse and have lots of biodiversity.

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In the determination of the specific heat of a metal, why is it desirable to use the minimum volume of water that will allow imm
Softa [21]

Answer:

Because it will allow a bigger temperature change.

Explanation:

The specific heat of the metal can be calculated by the heat change between it and the water. The total amount of heat must be 0, thus, the heat of the metal (Qm) plus the heat of water (Qw):

Qm + Qw = 0

The heat is the mass multiplied by the specific heat (c) and by the temperature change:

mm*cm*ΔTm + mw*cw*ΔTw = 0

mm*cm*ΔTm = - mw*cw*ΔTw

So, as higher is the value of mw, as low is the value of ΔTw, and if ΔTw is very low, and so the calculations may not be precise.

7 0
3 years ago
The sum of the ages of a brother and sister is 26.
Goshia [24]
The brother is represented by variable b.
The sister is represented by the variable s. 
This means:
b+s=26
5 0
3 years ago
Please help out thanks
ra1l [238]

Answer:

Granite

Explanation:

The specific heat capacity of a substance, which is denoted by "c", is the amount of heat required to raise the temperature of a particular mass of that substance by 1°C. It is calculated as follows:

c = Q ÷ m∆T

Where;

c = specific heat capacity

Q = amount of heat (J)

m = mass of substance

∆T = change in temperature.

According to this equation and explanation above, a low specific heat capacity means that the rate at which the temperature is raised is slow and vice versa. Hence, from this question, GRANITE with specific capacity of 0.790 J/gK will raise temperature the slowest.

3 0
3 years ago
What sphere is most diffrent from earth
goblinko [34]

Answer:

The answer is either geosphere, hydrosphere, atmosphere, cryosphere, or biosphere. Its not the answer but its a hint. Please follow

6 0
3 years ago
In which type of reaction can two compounds exchange ions to form two different compounds? synthesis decomposition single replac
kap26 [50]
Double replacement reaction
6 0
3 years ago
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