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Elena-2011 [213]
3 years ago
5

A student makes the following hypothesis: If the amount of chocolate increases then the cake will taste sweeter. What is the ind

ependent variable?
Chemistry
1 answer:
Talja [164]3 years ago
8 0

Answer:

the chocolate

Explanation:

You are changing the amount of chocolate

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A bag of sand and a bag of feathers can have the same density if they have different:
ivann1987 [24]

Answer:

4. volumes

Explanation:

since feathers are generally lighter it must have a higher volume to have the same density.

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3 years ago
Which statement about subatomic particles is true? (2 points) Protons are the only subatomic particles to have charge. Electrons
Alona [7]
Protons are not the only subatomic particle that has a charge, electrons do to and they are negatively charged. Neutrons are situated in the nucleus of the atom, which means that they do not orbit it. Subatomic particles have different masses. 

You are then left with Electrons are the subatomic particles with the smallest mass as your answer. 
6 0
3 years ago
Please help asap,
Finger [1]
10. Capital C and D represent products of chemical reaction, the capital A and B represent reactants, <span>the lower case letter represent coefficients (how many atoms or molecules in chemical reaction).
12. According to </span><span>Le </span>Chatelier's principle (if<span> the concentration is changed, that will shift the equilibrium to the side that would reduce that change in concentration)</span> <span>the equilibrium shift to the left.
13. </span>According to Le Chatelier's principle the equilibrium shift to the right.
14. According to Le Chatelier's principle (<span>When the reaction is </span>exothermic<span>, heat is included as a product)</span> the equilibrium shift to the right.
5 0
3 years ago
For 20 points.... answer this
Allisa [31]
The answer is B.Let it sit
8 0
3 years ago
Read 2 more answers
A sample of pure NH4HS is placed in a sealed 2.0-L container and heated to 550 K at which the equilibrium constant is 3.5 x 10-3
Zolol [24]

Answer:

The mass of NH_{3} in the container is 2.074 gram

Explanation:

Given:

Volume of NH_{4} HS    V = 2 lit

Equilibrium constant k _{eq} = 3.5 \times 10^{-3}

The reaction in which NH_{3} is produced

  NH_{4} HS ⇄ NH_{3} + H_{2}S

Here equal moles of NH_{3} and H_{2}S is formed.

From the formula of equilibrium constant,

  k_{eq} = (NH_{3})(H_{2}S )

   x^{2} = 3.5 \times 10^{-3}

     x = 0.061 M

Above value shows,

   NH_{3} = 0.061 \frac{moles}{L}

So in 2 L no. moles of NH_{3} = 0.061 \times 2 = 0.122 moles.

So mass of 0.122 mole of NH_{3} is = 0.122 \times 17 = 2.074 g

Therefore, the mass of NH_{3} in the container is 2.074 gram

8 0
3 years ago
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