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alexandr402 [8]
3 years ago
13

Which statement is true about the elements in the periodic table?

Chemistry
2 answers:
a_sh-v [17]3 years ago
6 0

Answer:

B

Explanation:

s2008m [1.1K]3 years ago
4 0

Answer:

Statment 2

Explanation:

This is just an educated guess

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Use the following information to answer the following question.
Irina-Kira [14]

Answer:

For these problems, we need to compare the theoretical yield that we'd get from performing stoichiometry to the actual yield stated in the problem. % yield is the actual yield/theoretical yield x 100%  

Cu + 2 AgNO₠→ Cu(NOâ‚)â‚‚ + 2 Ag ==> each mole of copper yields two moles of silver  

12.7-g Cu x ( 1 mol Cu /63.5-g Cu) x ( 2 mol Ag / 1 mol Cu) x (108-g Ag / 1 mol Ag) = 43.2-g Ag. This is the theoretical yield. Now, since we got 38.1-g Ag our % yield is:  

38.1-g/43.2-g x 100% = 88.2%

Explanation:

5 0
2 years ago
A fly hits a windshield of a truck. The truck exerts a force on the fly, and
sweet-ann [11.9K]

Answer:

A fly hits a windshield of a truck.

Explanation:

newton's first law

7 0
3 years ago
A well-insulated cup of water is too hot to make tea, so you mixed it with an equal amount of cool water to lower the temperatur
natulia [17]

Answer:

The entropy of the final solution decreases, as the reaction disorder is less.

Explanation:

The higher the temperature, the greater the heat of the reaction and the greater the disorder it has, so the entropy will increase ... But this is not the case, since the solution cools, decreasing the entropy proportionally.

4 0
3 years ago
Write the correctly balanced equation for the complete neutralization of h3po4 with ca(oh)2.
Leokris [45]
I hope my calculation is correct :P

6 0
3 years ago
What is the mass of a crate if a force of 200 N causes it to accelerate at 8 m/s2? (formula: F=ma)
nexus9112 [7]

Answer:

<em>m</em> = 25 kg

Explanation:

<em>F = ma</em>

\text{m} = \frac{F }{a }

\text{m} = \frac{\text{200 N}}{\text{8m}\cdot\text{s}^{-2}} = \text{25 kg}

5 0
3 years ago
Read 2 more answers
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