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PolarNik [594]
3 years ago
8

What does the mass of an object depend on?

Chemistry
2 answers:
Svetllana [295]3 years ago
4 0

Answer:

D or the 4th one

Explanation:

mass is literally the measure of matter in an object which is essentially the weight or how much stuff there is.

mr_godi [17]3 years ago
4 0

Answer:

C:)

Explanation:

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How many hydrogen atoms in the following chemical formula ? <br> NH4OH
djyliett [7]

Answer:

5

Explanation:

NH4OH

The subscript gives the info that there are 4 hydrogen atoms but there is another H in the formula so you add them up.

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2 years ago
Human skin color varies widely around the world, and children do not always exhibit the exact same coloring as their parents. Ba
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D an example of polygenic inheritance

ps this is more biology than chemistry
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Calculate RMM given Aluminium sulphate given RAM: A1-27; S-32; 0-16
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IMISS THE RAGE⁉️⁉️⁉️⁉️⁉️⁉️IMISS THE RAGE⁉️⁉️⁉️⁉️⁉️⁉️IMISS THE RAGE⁉️⁉️⁉️⁉️⁉️⁉️

3 0
2 years ago
A 52.9g sample of brass, which has a specific heat capacity of 0.375·J·g^−1°C^−1, is put into a calorimeter (see sketch a
vaieri [72.5K]

Answer: 90.04°C

Explanation: <u>Calorimeter</u> is a device measures the amount of heat of a chemical or physical process. An ideal calorimeter is one that is well-insulated, i.e., prevent the transfer  of heat between the calorimeter and its surroundings. So, the net heat change inside the calorimeter is zero:

q_{1}+q_{2}=0

Rearraging, it can be written as

q_{1}=-q_{2}

showing that the heat gained by Substance 1 is equal to the energy lost by Substance 2.

In our case, water is gaining heat, because its temperature has risen and so, brass is losing energy:

q_{water}=-q_{brass}

Calculating:

m_{w}.c_{w}.\Delta T=-[m_{b}.c_{b}.\Delta T]

100.4.18.(18.4-15)=-[52.9.0.375.(18.4-T)]

Note: final temperature is the same as the substances are in thermal equilibrium.

Solving:

418(3.4)= - 365.01 + 19.8375T

19.8375T = 1786.21

T = 90.04

The initial temperature for the sample of brass was 90.04°.

7 0
2 years ago
An aluminum soft drink can is approximately 0.55 moles of aluminum. How many
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Round 87.073 meters to 3 significant figures. write your answer in scientific notation. step 1: 87.073 rounds to step 2: write scientific notation : meters...

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