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Whitepunk [10]
3 years ago
10

Unlike the nervous system, the endocrine system ___ A) Responds quickly B) Does not respond C) Rarely responds D) Responds Slowl

y
Chemistry
1 answer:
valentina_108 [34]3 years ago
3 0
D) Responds slowly 


Good luck. It responds slower them the nervous system 
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If a 67.3G rock is dissolved in 2.00L of acid, what is the molar concentration of gold in the acid solution
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Answer:

[Au] = 0.171 M

Explanation:

For this question, we assume the rock is 100 % gold.

First of all, we determine the moles of gold

67.3 g . 1mol/ 196.97g = 0.342 moles

Molar concentration is defined as the moles of solute, contained in 1L of solution.

Our solution volume is 2L.

M = 0.342 mol / 2L = 0.171

Molar concentration, also called molarity of solution is the most typical unit of concentration.

6 0
2 years ago
Is it good to use alcl on the icy roads?
Zina [86]
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3 years ago
What is the percent composition by mass of sulfur in the compound mgso4
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Answer:

26.7% is the percent composition by mass of sulfur in a compound named magnesium sulfate.

Explanation:

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Number of sulfur atom = 1

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26.7% is the percent composition by mass of sulfur in a compound named magnesium sulfate.

6 0
3 years ago
A) 30.22 g NaCl x 1 mol NaC l =      58.4430 Molar mass (g) NaCl=0.5171 mol NaCl
jekas [21]
The third question requires you to solve for the weight of sodium (Na) and weight of Chloride (Cl) from the calculated moles of each element Na, and Cl.

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