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Kitty [74]
3 years ago
5

The data were collected over five spring seasons. What is the difference between the number of frogs in the pond when the rainfa

ll was 5 cm and when the rainfall was 20 cm?
Please help​
Chemistry
1 answer:
Lunna [17]3 years ago
3 0

Answer: they like deep water

Explanation: they do

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The molar mass of c3h8o2 (four significant figures) is ________.
Luda [366]
So carbon is 12(3), hydrogen is 1.01 (8), and oxygen is 16(2). Add it all together and you get 76.08 amu. That's molecular. The molar would be in grams (76.08 g). Hope that answered the question. 
6 0
3 years ago
A 10kg bowling ball would require what force to accelerate down an alleyway at a rate of 3m/s2?
mixas84 [53]
Ok so this all boils down to Newton's second law

Force = mass X acceleration 

 so the force = 10 X 3 = 30N 
8 0
3 years ago
What is a material which cannot be broken down or changed into another substance using chemical matters?
Alika [10]
Elements cannot be broken down in this fashion.  

Compounds, homogeneous mixtures, and heterogeneous mixtures can be broken down or separated with chemical processes, or in some cases, just by manual separation.
5 0
3 years ago
Murcury is the only metal at room temperature. Its density is 13.6g/mL. How many grams of murcury will occupy a volume of 95.8mL
Hatshy [7]

Answer:

<h3>The answer is 1.30288 × 10³ g</h3>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

<h3>mass = Density × volume</h3>

From the question

volume = 95.8mL

density = 13.6g/mL

We have

mass = 13.6 × 95.8 = 1302.88

We have the final answer as

<h3>1.30288 × 10³ g</h3>

Hope this helps you

3 0
3 years ago
Which equation correctly relates the heat of reaction to the standard heats of formation?
VARVARA [1.3K]

Answer:

D

Explanation:

∆H° = ∆Hf ° (products) – ∆Hf ° (reactants)

4 0
3 years ago
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