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3 years ago

Which of the following graphs has a slope that indicates an object that is steadily slowing down?

1 answer:

7 0

The correct graph should start at the top left of the plane. It should look like a diagonal line heading down towards the bottom right.

Whenever you have a graph moving at a steady rate, it will be linear (or straight/diagonal). Depending on how the graph is changing will determine which corner you start and end on.

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HELP with these 2 questions asap

katovenus [111]

Answer:

number 1 is b and and number two d

Explanation:

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4 years ago

Read 2 more answers

What do the rows of the periodic table periodic table indicate

Tatiana [17]

Answer:

The rows on the periodic table are called periods. All the elements in a period have valence electrons in the same shell. The number of valence electrons increases from left to right in the period. When the shell is full, a new row is started and the process repeats.

<h2>I hope it helps plz let me know if it is right or wrong.</h2>

6 0

3 years ago

Count the atoms in this common formula for the explosive TNT<br><br> 2C7H5(NO2)3

ankoles [38]

Answer:

Explanation:

7 carbon atoms, 6 hydrogen atoms,9 NO2 atoms

7+6+9=22

2(22)=44

44 atoms

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3 years ago

Tap water is a mixture. TRUE or FALSE.

Temka [501]

True, H2O is a compound with 2 hydrogens and one oxygen

7 0

3 years ago

If 17. 6 g of hcl are used to produce a 14. 5 l solution, what is the ph of the solution?.

kati45 [8]

This problem is providing us with the mass of hydrochloric acid and the volume of solution and asks for the pH of the resulting solution, which turns out to be 1.477.

<h3>pH calculations</h3>

In chemistry, one can calculate the pH of a solution by firstly obtaining its molarity as the division of the moles of solute by the liters of solution, so in this case for HCl we have:

$M=\frac{17.6g*\frac{1mol}{36.46g} }{14.5L} \\\\M=0.0333 M$

Next, due to the fact that hydrochloric acid is a strong acid, we realize its concentration is nearly the same to the released hydrogen ions to the solution upon ionization. Thereby, the resulting pH is:

$pH=-log(0.0333)\\\\pH=1.477$

Which conserves as much decimals as significant figures in the molarity.

Learn more about pH calculations: brainly.com/question/1195974

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2 years ago