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Anuta_ua [19.1K]
3 years ago
5

Helpp pleasee.............​

Chemistry
2 answers:
natka813 [3]3 years ago
8 0
Yea the answer is Lithium and boron
velikii [3]3 years ago
5 0

Answer:

it's answer is lithium and boron.

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Una pieza de silicio tiene un volumen de 8 cm3. ¿Cuál es su masa? *
Maurinko [17]

Answer:

el volumen es igual a masa decidida por densidad

8 0
2 years ago
Which gas occupies the highest volume of STP
almond37 [142]

A. 0.02 mol of O2

B. 0.1 mol of CI2

C. 1 mol of N2

D. 2 mol of H2

Bolded answer is correct.

4 0
3 years ago
Which gases are responsible for global warming?
elena-s [515]

Answer:  

Greenhouse gas Chemical formula Global Warming Potential, 100-year time horizon

Carbon Dioxide

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8 0
3 years ago
a piece of food is burned in a calorimeter that contains 200.0g of water. If the temperature of the water rose from 65.0°C to 83
Flauer [41]

Answer: 15062.4 Joules

Explanation:

The quantity of heat energy (Q) required to heat a substance depends on its Mass (M), specific heat capacity (C) and change in temperature (Φ)

Thus, Q = MCΦ

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Q = ?

Mass of food = 200.0g

C = 4.184 j/g°C

Φ = (Final temperature - Initial temperature)

= 83.0°C - 65.0°C = 18°C

Then, Q = MCΦ

Q = 200.0g x 4.184 j/g°C x 18°C

Q = 15062.4 J

Thus, 15062.4 joules of heat energy was contained in the food.

4 0
3 years ago
Which is the correct formula for the compound made when aqueous solutions containing a dissolved magnesium compound and a dissol
jenyasd209 [6]
It would be MgCl₂ ~ Magnesium Chloride. 
4 0
4 years ago
Read 2 more answers
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