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Mariana [72]
2 years ago
12

Based on its location on the periodic table, what group does Strontium belong to?

Chemistry
2 answers:
Gnom [1K]2 years ago
8 0

Answer:

alkaline earth metals

Explanation:

NeX [460]2 years ago
3 0

Answer:

Group 2

Explanation:

Strontium (Sr), chemical element, one of the alkaline-earth metals of Group 2 (IIa) of the periodic table.

Hope this helps

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Are solar and lunar eclipses processed by the movements of the Earth and moon?
Inga [223]

Explanation:

As the Earth rotates on its axis and revolves around the Sun, several different effects are produced. When the new moon comes between the Earth and the Sun along the ecliptic, a solar eclipse is produced. When the Earth comes between the full moon and the Sun along the ecliptic, a lunar eclipse occurs.

7 0
3 years ago
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What is the change in enthalpy when 11. 0 g of liquid mercury is heated by 15°c?
Vlad1618 [11]

Enthalpy change is the difference between energy used and energy gained. The change in enthalpy of the liquid mercury is 0.0231 kJ.

<h3>What is the enthalpy change?</h3>

Enthalpy change is the difference between the energy used to break chemical bonds and the energy gained by the products formed in a chemical reaction.

The enthalpy change is given by,

\rm \Delta H_{rxn} = \rm q_{rxn}

and,

\rm q = mc\Delta T

Given,

Mass of the liquid mercury (m) = 11.0 gm

The specific heat of mercury (c) = 0.14 J per g per degree Celsius

Temperature change = 15 degrees Celsius

Enthalpy change is calculated as:

\begin{aligned} \rm q &= \rm mc\Delta T\\\\&= 11 \times 0.14 \times 15\\\\&= 23.1 \;\rm J\end{aligned}

Therefore, 0.0231 kJ is the change in enthalpy.

Learn more about enthalpy change here:

brainly.com/question/10932978

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6 0
2 years ago
_ an electron moved around the nucleus in circular paths​
kifflom [539]

Answer: although it is convenient to think of the electron moving around the nucleus along circular paths

Explanation:

7 0
3 years ago
What did Thomson’s model of the atom include that Dalton’s model did not have?
Allushta [10]
Thomson's model included Protons and Electrons. His model is referred to as 'Plum Pudding' because of it.
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3 years ago
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How many protons does a nitrogen atom have?<br> 07<br> 0 14<br> 8<br> 05
VLD [36.1K]

Answer:

07.

Explanation:

8 0
2 years ago
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