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Kaylis [27]
2 years ago
10

What is the concentration if 0.25 mil is dissolved in 500cm cubed of solution

Chemistry
1 answer:
Dafna1 [17]2 years ago
8 0

Answer:

0.5 mol/dm3

Explanation:

e.g. g/dm3, g/cm3 and mol/dm3

= g dm-3, g cm-3 and mol dm-3

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What impact did the Spanish have on the region of South America?
vichka [17]

Answer:

The Spaniards practically went to war with the native Americans in South America, such as the Inca. They also brought diseases to South America. Diseases like smallpox.

Explanation:

Then after effectively killing off most of the native American population the Spanish continued to use South America for resources and they enslaved most of what was left of the non-Spanish and mixed populations. Francisco Pizarro took a page from Cortes' book, capturing Atahualpa, Emperor of the Inca, in 1532 and Cortes was the conquistador who defeated the Aztec Empire in what is now modern day Mexico or Central America.

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3 years ago
Which action(s) is/are true of antihistamines? (select all that apply.) test bank?
Sav [38]
The correct answers from the choices are:

a. Reduce inflammation locally
b. Antagonize H1 receptors
c. May be administered orally
<span>d. Are systemically distributed

</span><span>Antihistamines are drugs that are H1 antagonists or blockers, may be administered orally, are distributed systemically, and do not directly reduce nasal congestion.</span>
7 0
3 years ago
What would be the new volume if the temperature on 800 mL of gas is changed
dolphi86 [110]
I think you divide something
8 0
3 years ago
What is the weight of a 90kg man standing on the moon, where gmoon = 1.64 m/s2?
Doss [256]

Answer:

The weigth of a 90kg man standing on the moon is <u><em>147.6 N (option C)</em></u>

Explanation:

Weight is called the action exerted by the force of gravity on the body.

The mass (amount of matter that a body contains) of an object will always be the same, regardless of where it is located. Instead, the weight of the object will vary according to the force of gravity acting on it.

The formula that allows you to calculate the weight of any body is:

W = m*g

where:

  • W = weight measured in N.
  • m = mass measured in kg.
  • g = acceleration of gravity measured in m/s². The acceleration of gravity g is the same for all objects that fall due to gravitational attraction, whatever their size or composition. For example, as an approximate value on Earth, g = 9.8 m/s².

In this case,  the mass m has a value of 90 kg and the gravity g has a value of 1.64 m/s², which is the value of the acceleration of gravity of the moon. Then:

W=90 kg* 1.64 m/s²

<u><em>W= 147.6 N</em></u>

Finally, <u><em>the weigth of a 90kg man standing on the moon is 147.6 N (option C)</em></u>

3 0
3 years ago
Brain’s family has a compost pile at home they need to put all the weeds the pull up from the garden in it as well as any vegeta
Flauer [41]

Answer: b. It would happen faster at warmer air temperatures

Explanation:saw another site say this was the answer

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3 years ago
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