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brilliants [131]
3 years ago
12

Plllllllllzzzzzzzzzzz heeeeeelllllppppppppp meeeeeeeeeeee madam/sir plzzzzzzz​

Chemistry
1 answer:
Ber [7]3 years ago
4 0

Answer:

put it a 3 d model shape

Explanation:

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A 136 g sample of an unknown substance was heated from 20.0 °C to 40.0 °C. In the process the substance absorbed 2440 J of energ
Julli [10]

Answer:

Option A. The specific heat is 0.897 J/gºC, The Substance is aluminum.

Explanation:

We'll begin by calculating the change in temperature of the substance. This can be obtained as follow:

Initial temperature (T₁) = 20.0 °C

Final temperature (T₂) = 40.0 °C

Change in temperature (ΔT) =?

ΔT = T₂ – T₁

ΔT = 40 – 20

ΔT = 20 °C

Finally, we shall determine the specific heat capacity of the substance. This can be obtained as follow:

Mass (M) = 136 g

Change in temperature (ΔT) = 20 °C

Heat (Q) absorbed = 2440 J

Specific heat capacity (C) =?

Q = MCΔT

2440 = 136 × C × 20

2440 = 2720 × C

Divide both side by 2720

C = 2440 / 2720

C = 0.897 J/gºC

Comparing the specific heat capacity (i.e 0.897 J/gºC) of the substance with those in the table above, the substance is Aluminum.

Thus, option A gives the correct answer to the question.

4 0
3 years ago
There are about 115 elements, each of which has its own chemical___​
nlexa [21]

Answer:

properties is the answer

there are about 115 elements, each of which has its own chemical. properties

4 0
3 years ago
Read 2 more answers
Why is the structure of atom important to scientist?
ss7ja [257]
Becauze were made of LOTS of atoms actually ECERYTHING EVEN AIR is made of atoms
3 0
3 years ago
How do you know which to pick?
mamaluj [8]

Answer:

\boxed{\text{(C)}}

Explanation:

The solid consists of positive and negative ions, so it is an ionic solid.

Ionic solids are brittle, usually water-soluble, and poor thermal conductors as solids. Thus, the correct answer is \boxed{\textbf{(C)}}.

(A) is wrong. It describes a covalent solid, which is soft and always a poor conductor.

(B) is wrong. It describes a covalent solid, which is also low-melting.

(D) is wrong. It describes a metal, and a metal does not contain negative ions.

8 0
4 years ago
What is/are the possiable products of dehydrohalogentaion of cis-1-bromo-2-ethylcyclohexane?
STALIN [3.7K]

what is Maximum possible products?

Although Minimum Viable Product strategies are effective for startups, they presuppose you have no limitations. However, in an MPP universe, your limitations serve to focus you rather than to thwart you. Instead than conceptualizing ideas for the future, they require you to consider how well you can meet your clients' wants inside a specific situation that now exists.

Photobox will introduce countless new product lines that are only modifications of current products. For instance, a bowl could be printed as a dog bowl or a cereal dish for kids. The tech stack doesn't need to be altered, and customization yields the highest return on investment for the product.

Learn more about Maximum possible products visit here:-

brainly.com/question/26567900?referrer=searchResults

#SPJ4

8 0
2 years ago
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