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Elan Coil [88]
3 years ago
12

Hii!! need help with this last answer for chem. would appreciate the help. (question 3)

Chemistry
1 answer:
avanturin [10]3 years ago
4 0

Answer:

1.023 J / g°C

Explanation:

Mass, m = 37.9 g

Temperature increase (change) = 25.0°C

Heat = 969 J

Specific heat capacity ,  c= ?

The relationship between these quantities is given by the equation;

H = mcΔT

c = H / mΔT

c = 969 / (37.9 * 25)

c = 969 / 947.5 = 1.023 J / g°C

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Softa [21]

Answer:

<h2>1565.2 kg</h2>

Explanation:

The mass of the vehicle can be found by using the formula

m =  \frac{f}{a}  \\

f is the force

a is the acceleration

From the question we have

a =  \frac{1800}{1.15}  \\  = 1565.217...

We have the final answer as

<h3>1565.2 kg</h3>

Hope this helps you

7 0
3 years ago
What atomic or hybrid orbitals make up the sigma bond between ge and h in germanium hydride, geh4 ?
ozzi
<span>Germane is the chemical compound with the formula GeH₄, and the germanium analogue of methane. It is the simplest germanium hydride and one of the most useful compounds of germanium.


</span>In chemistry, sigma bonds (σ bonds) are the strongest type of covalent chemical bond. They are formed by head-on overlapping between atomic orbitals. Sigma<span> bonding is most simply defined for diatomic molecules using the language and tools of symmetry groups.
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I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
8 0
4 years ago
Read 2 more answers
Balance these chemical equations mg(s)_ + _N2(g) = _mg3N2
Salsk061 [2.6K]

Answer:

3 Mg(s) + N_2(g) = Mg_3N_2(s)

Explanation:

The valance of magnesium atom is  +2

While the valence of nitrogen atom is - 3

Let us first write the first  half-reactions

Mg ---> Mg^{2+} + 2e^{-}

The second half reaction is

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Adding the above two reactions and writing the final reaction, we get -

Mg + N2 = Mg_3N_2

The balance equation is

3 Mg(s) + N_2(g) = Mg_3N_2(s)

6 0
4 years ago
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saveliy_v [14]

Answer:

chemical reaction between those a b c it's a reaction which occurs when heating

8 0
3 years ago
If a 50.0 mL sample of gas exerts a pressure of 0.59 atm at 35.0 Celsius. What volume will the gas occupy at STP?
Rudik [331]

Explanation:

P1V1/T1 =P2V2/T2

V2 =P1V1T2/P2T1

0.59×0.05×273/1×308

V2 =0.03L

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3 years ago
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