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Korolek [52]
2 years ago
15

What does “circulate” mean in this passage?

Chemistry
2 answers:
IRINA_888 [86]2 years ago
7 0
It means: move or cause to move continuously or freely through a closed system or area.
lisov135 [29]2 years ago
3 0

Answer:

Below

Explanation:

Move or cause to move continuously or freely through the blood.

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If an element has a mass number of 222 and an atomic number of 86, how
svlad2 [7]

Answer:

136

Explanation:

The Mass Number is the combination of the amount of Protons and Neutrons in an element, so if the total mass is 222, and the amount of protons is 86, then you can do 86 + x = 222 to find that x is equal to 136

5 0
3 years ago
Which action effectively increases the reactant concentration and increases
yanalaym [24]

Answer:

heating the reactant mix

Explanation:

Heat can result in to speed the reaction process.

hope it helps!

8 0
3 years ago
Read 2 more answers
Please Help 8-9!!!!!!!
seropon [69]

The labeled diagram is given in the image attached.

As it can be seen from the image that freezing is when energy is removed from the system at 0 ⁰ while melting is when energy is added at 0⁰.

Also when energy is added at 100⁰C, it causes boiling while when it is removed at 100⁰C, it causes condensation.


Melting point of water is 0⁰C while boiling point is 100⁰C

3 0
3 years ago
Please help me outttt
leonid [27]

Answer:

4.) 9, 1, and 4    5.) 4, 1, and 4

Explanation:

I am not quite sure about this because I cannot remember if the coefficient (the number before the elements) is applied to every element in the compound. If it is then your number of atoms are as follows: CORRECTION: you do not have to apply the coefficient to every element only the one that is after it. So when you back and fix the error your number of atoms will be as follows:

number 4

H: 9

P: 1

O: 4

number 5:

H: 4

S: 1

O: 4

you can calculate the number of atoms present in this compound by multiplying the coefficient and the subscripts of each atom.

hope this helped you :)

7 0
3 years ago
A neutral Atom of silicon-30 contains 14 protons . How many electrons does it have ?
svetoff [14.1K]

14 right??? i hope this helps

3 0
3 years ago
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