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timofeeve [1]
4 years ago
14

I WILL GIVE BRAINLY IF U HELP ME WITH THIS LITTLE PASSAGE

Chemistry
1 answer:
xeze [42]4 years ago
3 0

a primary source combines gases and explodes in the tip of the man

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Water is stored in a tank at 75°C and 2.5 atm. Use the Antoine equation calculate the boiling temperature of the water (F). Repo
andreev551 [17]

Explanation:

Antoine equation is as follows.

              log_{10} P = A - \frac{B}{C + T}

It water is at 75^{o}C, then values of constants A, B, and C will be as follows.

               A = 8.07131,  B = 1730.63,  C = 233.426

When pressure, P = 2.5 atm then putting these given values into the above equation as follows.

               log_{10} P = A - \frac{B}{C + T}

               log_{10} (2.5 \times 101.325 \times 10^{3}) = (8.07131 - \frac{1730.63}{233.426 + T})    

                5.40365 = 8.07131 - \frac{1730.63}{233.4 + T}

                        T = 415.33^{o}C

Converting the temperature into Fahrenheit as follows.

                   T_{F} = \frac{9}{5} \times 415.33 + 32

                                  = 779.5^{o}F

Thus, we can conclude that the boiling temperature of the water is 779.5^{o}F.

6 0
4 years ago
An atom has 17 protons and 18 neutrons. Which of the following could be the symbol for that atom, including its mass number?
anygoal [31]

An atom of chlorine-35 contains 18 neutrons (17 protons + 18 neutrons = 35 particles in the nucleus) while an atom of chlorine-37 contains 20 neutrons (17 protons + 20 neutrons = 37 particles in the nucleus). Adding or removing a neutron from an atom's nucleus creates isotopes of a particular element.

7 0
3 years ago
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Answer:

Fossil Fuel

Explanation:

Im not sure if this is the correct answer for your assignment but it is the answer i know

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_____ are factors that are not tested and remain constant. A. Dependent variables B. Controlled variables C. Independent variabl
stepan [7]

Answer:

B. Controlled variables

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The Dependent sample t-test compares the mean score of measurements in one group to that of another other group. It mainly used when analyzing comparable sample units as it pairs repeatable observations within a time frame.

Controlled variables are factors that are not tested and remain constant. Some examples of controlled variables are temperature, pressure, volume etc

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The younger layers of rock in the Grand Canyon are on top of the older layers.
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The next layer is about 30 million years older and contains plant fossils in its mixed shale, limestone, and sandstone rock layers. The third to last layer is full of brachiopods, trilobites, and trilobite tunnels. You believe it is the oldest layer above surface in the Grand Canyon.

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