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Slav-nsk [51]
3 years ago
7

The number of __________ must be equal on both sides of the ___________________. Reactions must be balanced because all things i

n nature need to be ___________________. There are __________________ rules that we follow when balancing reactions. The __________________ should never changed but only the __________________ can be changed when balancing the reaction. We are allowed to use __________________ or __________________ for the coefficients to balance a reaction. We must avoid _______________________ when balancing a reaction and only do ___________atom at a time.
Chemistry
1 answer:
OLga [1]3 years ago
3 0
What are the option
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1(a). What is the solubility of calcium chloride (CaCl2) at 5°C?
In-s [12.5K]

Answer:

60 g/100 g water  

Explanation:

Find 5 °C on the horizontal axis.

Draw a line vertically from that point until you reach the solubility curve for CaCl₂.  

Then draw a horizontal line from there to the vertical axis.

The solubility of CaCl₂ is 60 g/100 g water.

7 0
3 years ago
Iron reacts with cl2 according to the equation 2 fe(s) + 3 cl2(g) ? 2 fecl3(s). how many moles of cl2 is needed to react with 4.
IceJOKER [234]
2Fe + 3Cl₂ ---> 2FeCl₃

4.4mol of Fe, you have a 2:3 ratio of Fe to Cl₂ so divide 4.4/2 = 2.2 and multiply by three 2.2 x 3 = 6.6mol of Cl₂

hope that helps :)
8 0
3 years ago
Read 2 more answers
How to solve 2 and 3
GarryVolchara [31]
Use the Heat formula for both problems.

q=m*c*∆t

Where
q= heat in Joules
m= mass in grams
c= specific heat which is a constant 4.18
∆t= change in temperature
3 0
3 years ago
Las Vegas Raiders' running back Josh Jacobs is 72 inches tall and has mass of 100 kg. Los
gladu [14]

Answer:

Josh is running at a speed of 9.09 yards per second.

Josh's velocity is 9.09 East.

Josh's force is 900 N.

Aaron Donald's force is 845 N.

Yes Josh scores the touchdown because he is faster and has more mass than Donald.

Explanation:

Josh scores the touchdown as he is heavier and faster than Donald.

Formulas are:

Force= mass x acceleration

Speed= distance divided by time.

Velocity= distance divided by time.

4 0
3 years ago
What contains more hydrogen atoms, 1.0 mole of H20 or 1.0 moles of НЗО?
Vladimir [108]
A mole of an element refers to 6.02e23 atoms so they would have the same amount of atoms
4 0
3 years ago
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