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2 years ago

In a chemical reaction, mass is conserved. This means that

1 answer:

3 0

D. the mass and number of atoms and the elements will always and must be equal on both sides of the equation, mass can not be destroyed, only conserved

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A 4.00-gram sample of sodium chloride was added to a beaker containing 40.0 mL 0.033 M lead(II)

melamori03 [73]

The answer is going to be 2.5

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3 years ago

Calculate the mass of 140g of Cl2

spin [16.1K]

Answer:

6amu

Explanation:

mass=proton+neutron

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3 years ago

What is not a factor in soil type?

SpyIntel [72]

The answer to this questions is letterB

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3 years ago

Object A specific heat is 2.45 J/g C and object B specific heat is 0.82 J/g C. Which object will heat up more if they have the s

Artist 52 [7]

Answer: Object B will heat up more.

Explanation:

The formula for specific heat is as follows.

Q = $m C \Delta T$

Where,

Q = heat provided

m = mass

C = specific heat

$\Delta T$ = change in temperature

Now, both the objects have same mass and equal amount of heat is applied.

According to the formula, the equation will be as follows.

$Q_{1}$ = $Q_{2}$

$m C_{1}\Delta T$ = $m C_{2}\Delta T_{2}$

Cancel m from both sides, as mass is same. Therefore,

$C_{1} (T_{f} - T_{i})_A$ = $C_{2}(T_{f} - T_{i})_B$

Cancel out the initial temperature and put the values of specific heat, then the equation will be as follows.

$2.45 (T_{f})_A$ = $0.82(T_{f})_B$

Therefore, from the above equation it can be concluded that the object with low specific heat will heat up more as its specific heat will be inversely proportional to its final temperature.

Hence, object B will heat up more.

4 0

3 years ago

How many hydrogen atoms are in 1.50 x 10(22) molecules of water. Show your work.

aleksandrvk [35]

Answer:

option B is a right answer

Explanation:

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and as thanks for my answer

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3 years ago