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Leya [2.2K]
3 years ago
12

Balance the equation NaHCO3(s).... Please help!! Question #1

Chemistry
1 answer:
ddd [48]3 years ago
7 0

Answer:

NaHCO3 → H2O + CO2 + Na2CO3

Explanation:

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The discovery of a very early form of helium supports the big bang theory because _____.
Amiraneli [1.4K]

Answer:

The discovery of early helium supports the Big Bang Theory because helium is something that would have been a product of a large explosion. Helium is also the most proliferate element in the universe.

Explanation:

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6 0
3 years ago
Read 2 more answers
 Help ASAP only right answers only no spam don’t answer if you don’t know
aliina [53]

i know the answer is a theory

6 0
3 years ago
Read 2 more answers
Match the scientists to their contributions to the development of the periodic table.
stiv31 [10]
Where’s the chart and scientists?
3 0
4 years ago
If 9.0g of water contain 1.0 g of hydrogen what mass of oxygen is contained in 36 g of water
Mazyrski [523]
9/1 ratio so 9:1=36:x
X is your hydrogen in the 36g sample. To find the mass of Oxygen you subtract the mass of hydrogen from the total.
4 grams H
36-4=32 g h2o
4 0
3 years ago
Hydrogen gas, H2, reacts explosively with gaseous chlorine, Cl2, to form hydrogen chloride, HCl(g). What is the enthalpy change
Degger [83]

Answer:

-184.6 KJ/mole

Explanation:

H2(g) + Cl2(g) ------------> 2HCl(aq)    

Δ H0 rxn = Δ H0f products - Δ H0f reactants

= 2×-92.3 - (0 + 0)

= -184.6KJ/mole

H2(g) + Cl2(g) ------------> 2HCl(aq)       Δ H0rxn   = -184.6KJ/mole

5 0
3 years ago
Read 2 more answers
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