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Grace [21]
3 years ago
8

PLEASE ANSWER I WILL GIVE BRAINLIEST

Chemistry
2 answers:
mario62 [17]3 years ago
8 0
A Is the answer for this question
ratelena [41]3 years ago
3 0

Answer:

its A

Explanation:

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Two students are working together to build two models. Both models will represent the molecular structure of sodium bicarbonate,
vfiekz [6]

Answer:

Altogether for both models; two red jellybeans, two white jellybeans, two black jellybeans and six blue jellybeans.

<em>Note: Since no specific color was stated for oxygen atoms, the answer assigns blue colored jellybeans to represent oxygen atoms.J</em>

Explanation:

Sodium bicarbonate, NaHCO₃ is a compound composed of one atom of sodium, one atom of hydrogen, one atom of carbon and three atoms of oxygen.

Since red jellybeans represent sodium atoms, white jellybeans represent hydrogen atoms, black jellybeans represent carbon atoms and blue jellybeans represent oxygen atoms, each of the two students will require the following number of each jellybean for their model of sodium carbonate: One red jellybean, one white jellybean, one black jellybean and three blue jellybeans.

Altogether for both models; two red jellybeans, two white jellybeans, two black jellybeans and six blue jellybeans.

8 0
3 years ago
Please help me and I’ll give you brainiest!!!!!!!!! <br><br><br><br> Have a wonderful day!!:)))
Step2247 [10]

Answer:

up down up down thats the pattern

Explanation:

5 0
3 years ago
On average, how many hours of sleep do teenagers need each night? 7 hours 7.5 hours 8 hours 8.5 hours
Marrrta [24]

Answer:

8 to 8.5 since that is the recommended and people usualy sleep more than that

5 0
3 years ago
Read 2 more answers
Calculate the mass of water produced when 7.26 g of butane reacts with excess oxygen
MaRussiya [10]

Answer:

11.3 g.

Explanation:

Hello there!

In this case, since the combustion of butane is:

C_4H_{10}+\frac{13}{2} O_2\rightarrow 4CO_2+5H_2O

Thus, since there is a 1:5 mole ratio between butane and water, we obtain the following mass of water:

m_{H_2O}=7.26gC_4H_{10}*\frac{1molC_4H_{10}}{58.14gC_4H_{10}}*\frac{5molH_2O}{1molC_4H_{10}}  *\frac{18.02gH_2O}{1molH_2O}

Therefore, the resulting mass of water is:

m_{H_2O}=11.3gH_2O

Best regards!

4 0
3 years ago
In an ion, the number of electrons is _____ to the number of protons​
zaharov [31]

Answer:

more/less depending on if it lost or gained electrons during the ionic bond process

3 0
2 years ago
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