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kow [346]
2 years ago
14

Missing words please help me

Chemistry
2 answers:
Elina [12.6K]2 years ago
8 0

The first one is 206 then move, body, then protects, calcium,strong,blobs

kolezko [41]2 years ago
7 0
There are
206
bones in the human skeleton. Our bones are very
strong
the skeleton does three very important jobs. It helps us to
move
around, it supports the
body
and it
protects
the organs inside the body. Bones are made from
calcium
and they are very hard. They are
alive
and grow with us. Witought our skeletons, we would look like
blobs



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I need helpppp! i don’t understand this
Marta_Voda [28]

Answer: a. 410 K

b. 296 K

c. 394 K

d. -180 °C

e. 224°C

f. -3 °C

Explanation:

For °C to K : use °C + 273 = K

For K to °C : use °C = K - 273

4 0
3 years ago
Which liquid has the highest vapor pressure
Harlamova29_29 [7]
Propanone is the liquid with the high vapor pressure. At standard of 101.3 kPa, it has the temperature of 50 degrees Celsius.
4 0
3 years ago
In a chemical reaction, the mass of the products ____.
Pani-rosa [81]
In a chemical reaction, the mass of the products<span> is less than the mass of the reactants.
the first step in most stoichiometry problems is to <span>convert given quantities to moles.

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5 0
3 years ago
Read 2 more answers
Law of action-reaction
anzhelika [568]

Answer:

Formally stated, Newton's third law is: For every action, there is an equal and opposite reaction. The statement means that in every interaction, there is a pair of forces acting on the two interacting objects. The size of the forces on the first object equals the size of the force on the second object.

7 0
3 years ago
Nitric acid (HNO3) is a strong acid that is completely ionized in aqueous solutions of concentrations ranging from 1% to 10% (1.
Alborosie

<u>Given:</u>

Concentration of HNO3 = 7.50 M

% dissociation of HNO3 = 33%

<u>To determine:</u>

The Ka of HNO3

<u>Explanation:</u>

Based on the given data

[H+] = [NO3-] = 33%[HNO3] = 0.33*7.50 = 2.48 M

The dissociation equilibrium is-

            HNO3   ↔    H+      +      NO3-

I            7.50               0                 0

C          -2.48          +2.48              +2.48

E            5.02            2.48              2.48

Ka = [H+][NO3-]/HNO3 = (2.48)²/5.02 = 1.23

Ans: Ka for HNO3 = 1.23

6 0
3 years ago
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