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dexar [7]
3 years ago
13

Question 9 of 10

Chemistry
1 answer:
Softa [21]3 years ago
6 0

Answer:D

Explanation:I just took it

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Which of the following systems in not directly involved in the body's regulation of water?
s344n2d4d5 [400]

The muscular system is the only system that does not directly involved in the body's regulation of water. So lettered B is the answer.

Have a good day!

7 0
3 years ago
Sodium has the atomic number 11. How many electrons are in a sodium ion, which has the symbol Na=?
Snezhnost [94]
I believe the answer you're looking for is 10
5 0
4 years ago
Which action is the best example of a direct observation
luda_lava [24]

Since you didn't have any extra information about the question I'll be presenting an example from my own textbooks that I've used.

An example of a direct observation is listening to a cricket chirp at night, and counting the number of chirps per minute.

Direct Observation is where the evaulator watches the subject in their usual habitat without disrupting or altering it.

3 0
3 years ago
Read 2 more answers
A student increases the temperature of a 673 cm^3 balloon from 275 K to 460 K.
Kruka [31]

Answer:

1125.75 cm³

Explanation:

We are given;

Initial volume; V1 = 673 cm³

Initial temperature; T1 = 275 K

Final temperature; T2 = 460 K

From Charles law, we can find the new volume from;

V1/T1 = V2/T2

V2 = (V1 × T2)/T1

V2 = (673 × 460)/275

V2 = 1125.75 cm³

8 0
3 years ago
How many moles of AlCl3 are formed by 1.53 moles of CuCl2?
jolli1 [7]

Answer:

1.02 moles of AlCl3

Explanation:

Consider the balanced reaction equation shown below;

2Al(s) + 3CuCl2(aq) -------> 2AlCl3 (aq) + 3Cu(s)

This is the balanced reaction equation for the reaction going on above. Recall that the first step in solving any problem is to accurately put down the chemical reaction equation. This balanced reaction equation always serves a reliable guide in solving the problem at hand.

Given that;

3 moles of CuCl2 yields 2 moles of AlCl3

1.53 moles of CuCl2 yields 1.53 × 2 / 3 =1.02 moles of AlCl3

5 0
3 years ago
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