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12345 [234]
3 years ago
9

⚠️SOMEONE PLEASE HELP⚠️

Chemistry
2 answers:
Sliva [168]3 years ago
8 0

Answer:

D

Explanation:

I just took the test

pochemuha3 years ago
3 0

Answer:

Hey did u end up getting the answer by any chance ?

Explanation:

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_NaHCO(s) --&gt; _CO2+_NaCO(s)+_H2O<br><br>balance the equation​
elena55 [62]

The balanced equation :

2NaHCO₃⇒CO₂ + Na₂CO₃+H₂O

<h3>Further explanation</h3>

Given

Reaction

NaHCO(s) --> _CO2+_NaCO(s)+_H2O

Required

The balanced equation

Solution

Maybe the equation should be like this :

NaHCO₃⇒CO₂ + Na₂CO₃+H₂O

Give a coefficient

NaHCO₃⇒aCO₂ + bNa₂CO₃+cH₂O

Make an equation

Na, left=1, right=2b⇒2b=1⇒b=1/2

H, left=1, right=2c⇒2c=1⇒c=1/2

C, left=1, right=a+b⇒a+b=1⇒a+1/2=1⇒a=1/2

The equation becomes :

NaHCO₃⇒1/2CO₂ +1/2Na₂CO₃+1/2H₂O x2

2NaHCO₃⇒CO₂ + Na₂CO₃+H₂O

5 0
3 years ago
Why does the same side of the moon always face earth? A. The rotational period of earth is the same as that of the moon B. The r
mixer [17]

Answer: A. the rotational period of the earth is the same as that of the moon

3 0
3 years ago
Read 2 more answers
Hydrogen, oxygen, and chlorine are some of the ___ elements
Nimfa-mama [501]

Answer:

diatomic, non-metal

Explanation:

4 0
3 years ago
John measures the mass of a cup of chocolate milk and a glass of orange Juice. He places both containers on a balance scale. He
mylen [45]

Answer:

b. John has to pour each liquid into a container with the same mass and then compare them

would be the correct answer.  Hope this helps!

Explanation:

5 0
3 years ago
What is the mass of 3.75 moles of NaCI? ( Na= 22.99g/mol, CI= 35.45 g/mol)
seraphim [82]

Answer:

219.15 grams

Explanation:

What is the mass of 3.75 moles of NaCI? ( Na= 22.99g/mol, CI= 35.45 g/mol)

Mole of Na = 22.99g

Mole of Cl = 35.45g

For NaCl we have ratio of 1:1, so we have 1 Na for every Cl

So we just add the two together to get the molar mass of NaCl which is

22.99 + 35.45 = 58.44g/mol

And we know we have 3.75 moles of NaCl so we multiply that by the molar mass of NaCl to get our answer

3.75 x 58.44 = 219.15grams

6 0
3 years ago
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