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34kurt
3 years ago
5

A solution of the ionic salt CaSO3 would have blank pH

Chemistry
1 answer:
stepladder [879]3 years ago
8 0

Answer: basic

Explanation:

I just answered it on acellus it's correct ;)

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100.0 g water cools from 85.0°C to 20.0°C. If the specific heat of water is 4.18 J/g°C, calculate the change in energy.
Natali5045456 [20]

Answer:

-27.2 kJ

Explanation:

We can use the heat-transfer formula. Recall that:

\displaystyle q = mC\Delta T

Where <em>m</em> is the mass, <em>C</em> is the substance's specific heat, and Δ<em>T</em> is the change in temperature.

Hence substitute:


\displaystyle \begin{aligned} q & = (100.0\text{ g})\left(\frac{4.18\text{ J}}{\text{g-$^\circ$C}}\right)(20.0\text{ $^\circ$C} - 85.0\text{ $^\circ$C}) \\ \\ & =(100.0\text{ g})\left(\frac{4.18\text{ J}}{\text{g-$^\circ$C}}\right)(-65.0\text{ $^\circ$C}) \\ \\  & = -2.72\times 10^4\text{ J} = -27.2\text{ kJ}\end{aligned}

Therefore, the cooling of the water <em>released</em> about 27.2 kJ of heat.

5 0
3 years ago
1.5 miles to centimeters ​
Gemiola [76]

hi

1 mile is  1 609 meters.  (rounded).

As there is 100 centimeters in a meter, then

1 mile is  160 900 centimeter.  

Then 1.5 miles , is 1 mile + one half so :

160 900 + 160 900 /2 =  160 900 + 80 450

                                     =  241 350

1.5 mile is  241 350  centimeters.  

please note that the value of a mile was rounded.

4 0
1 year ago
Read 2 more answers
PLEASE HELP ME!!! When two atoms combine to form a compound, one atom pulls electrons from the other atom towards itself. The at
Ainat [17]

Answer:

The pulling atom is oxidized while the pulled atom is reduced. Grade 9 Chemistry

Explanation:

6 0
3 years ago
When seawater evaporates the concentration of salts increases until
Valentin [98]
Water go through areas of high to low concentration in this case osmosis.
5 0
4 years ago
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What is the charge of an atom's nucleus of an atom has 20 protons, 23 neutrons, and 18 electrons?
Sidana [21]

Answer:

It would have a charge of +2.

Explanation:

A proton has a charge of +1, an elctron has a charge of -1, and a neutron has a charge of 0. Ignore the neurons since they have a charge of 0. Since there are 20 protons and 18 electrons (20-18), the overall charge of the atom is +2.

8 0
4 years ago
Read 2 more answers
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