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irina1246 [14]
3 years ago
14

Energy is just like water, cycles through ecosystems. True or false?

Chemistry
1 answer:
Kipish [7]3 years ago
4 0

Answer:

true

Explanation:

I think

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A student flipped a coin 1000 times and recorded the outcome of each
dem82 [27]

Answer:

i guess none of these or 3.4% for 10%

Explanation:

I think the answer should be in the 30 to 40 number scale

3 0
3 years ago
Which focuses on the composition of matter
riadik2000 [5.3K]
There is no info for anyone to answer this
3 0
3 years ago
Which of the following statements is FALSE?
Jobisdone [24]

Answer:

Option C is false statement. The half life of a second order reaction is not dependent on concentration.

Explanation:

Half life of a reaction is defined as the amount of time which is required for a reactant concentration reduced by half comparison to its initial concentration.

Half life of a second order reaction is depend on the initial concentration of a reaction, in contrast to 1st order reaction.

7 0
3 years ago
What is the single temperature in degrees Celsius which has the same magnitude in degrees Fahrenheit?
kherson [118]

Answer:

-40 degress

Explanation:

To find the temperature when both are equal, we use an old algebra trick and just set ºF = ºC and solve one of the equations. So the temperature when both the Celsius and Fahrenheit scales are the same is -40 degrees.

6 0
4 years ago
A sample of a compound contains 60.0 g C and 5.05 g H. It’s molar mass is 78.12 g/mol. What is the compound’s molecular formula?
Natalka [10]

Answer:

C6H6

Explanation:

C :     60.0 g*1 mol/12 .01g = 5.00 mol

H:      5.05 g * 1 mol/1.01 g= 5.10 mol

C:H = 5.00 mol : 5.10 mol = 1:1

CH is an empirical formula

Molar mass (12.01 +1.01)=13.02 g/mol

78.12g/mol /13.02 g/mol =6

Molecular formula is the empirical that was taken 6 times (CH)6 = C6H6

5 0
4 years ago
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