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Dmitriy789 [7]
3 years ago
13

Directions: Read the paragraph carefully and identify the correct words that fit in the given sentences inside the box. Write yo

ur answer on a separate sheet.
Analyze the results
Dependent Hypothesis Test the hypothesis Draw a conclusion Question/Problem Observation Six Scientific step will lead you to an educated guess called (5) where you can have tentative answer to your question. In order for you to prove your educated guess you need to (6) by designing and conducting an experiment. In the experiment you need to identify the variables present and these are the (7) and (8) variables. The data from the experiment will be collected to (9) The summarized results from the experiment will determine whether the hypothesis is accepted or rejected and that is where you (10)Lu​

Chemistry
1 answer:
timama [110]3 years ago
3 0

Answer:

Scientific method, six, observation, question/ problem, hypothesis, test the hypothesis, depedent, independent, analyze the results, draw a conclusion

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Describe the structure and bonding in graphite.
yan [13]

Answer:

In graphite, each carbon atom is covalently bonded to 3 other carbon atoms. ... These extra electrons are delocalised, or free to move, in the area between layers of carbon atoms. As these electrons are free to move they are able to carry charge and thus graphite can conduct electricity.

Explanation:

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3 years ago
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Due to the low specific heat capacity of water the temperature of water changes much more quickly than the temperature of
Sholpan [36]

This statement is <u>TRUE.</u>

Explanation:

Due to the high heat capacity of water, it takes much more energy to have a gram of water raised by one degree compared to one gram of land. This is why during a hot day, the ground gets hotter faster than the adjacent oceans or adjacent lakes. It also takes water to lose the same amount of energy to have its temperatures drop by one degree as compared to land. During the night, therefore, this is why adjacent water bodies remain relatively warmer than land.

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3 years ago
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The answer is C: How long does it take distilled water to evaporate from a 5” diameter container?
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3 years ago
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In the reaction below, hydrogen peroxide decomposes to water. MM H2O2 = 34.02 g/mol MM H2O = 18.02 g/mol MM O2 = 32 g/mol 2H2O2
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Answer: 228.8 g of O2 are produced

Work:

1) Write the give balanced chemical equation:

2H2O2 → 2H2O + O2

2) molar ratios

2 mol H2O2 : 2 mol H2O :1 mol O2

3) proportion with the unknown quantity number of moles of O2:

          x                      1 mol O2
---------------------- = -----------------------
 14.3 mol H2O2        2 mol H2O2

4) Solve for x:

x = 1 mol O2 * 14.3 mol H2O2 / 2 mol H2O2 = 7.15 mol O2

5) Use the molar mass of O2 to convert 7.15 mol O2 to grams

molar mass of O2 = 2 * atomic mass of O = 2 * 16.00 g/mol = 32.00 g/mol

molar mass = mass in grams / number of moles

=> mass = molar mass * number of moles

mass of O2 =  32.00 g / mol * 7.15 mol = 228.8 g

Answer: 228.8 g
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4 years ago
A 50 kg cart has 324 kg•m/s of<br> momentum. How fast is the cart going?
PilotLPTM [1.2K]

Answer: 6.48m/s

Explanation:

From the question given, we obtained the following:

M = 50 kg

Velocity =?

Momentum = 324 kg•m/s

Momentum = Mass x Velocity

Velocity = momentum /Mass

Velocity = 324 / 50

Velocity = 6.48m/s

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3 years ago
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