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3 years ago

Help!!! i need asapp

Chemistry

1 answer:

Debora [2.8K]3 years ago

3 0

Answer: option A

The electrons are attracted to the protons

Explanation:

Electrostatics is a force that pull or push objects without the objects actually touching them.

Electrons have a negative charge and protons have a positive charge. Positive and negative attract each other so therefore the electrons are attracted to the protons.

It’s not B because the electrons aren’t 100% pushing away from the nucleus.

It’s not C because the electrons are not attracted to the neutrons. Neutrons don’t have a charge; they have a net zero charge.

It’s not D because the electrons can’t attract each other. Electrons have a negative charge and negative charges don’t attract each other; they push away from each other instead.

Hope that helps.

If you need a better explanation just let me know

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2) Write a hypothesis for the Observation and question below. Be sure to use the proper “If…, then…” format in your answer. Iden

Anna [14]

Answer:

If one astronaut used more force, then that one would be faster than the other. The independent variable is force. The dependent variable is speed.

Explanation:

Force is what is to be changed. Speed is what is being measured.

IV = Changed/factor DV=Measured/Changes by factor

4 0

2 years ago

If 15 g of C₂H₆ reacts with 60.0 g of O₂, how many moles of water (H₂O) will be produced?

IceJOKER [234]

Answer:

$n_{H_2O}=1.5molH_2O$

Explanation:

Hello,

In this case, the undergoing chemical reaction is:

$2C_2H_6 + 7O_2 \rightarrow 4CO_2 + 6H_2O$

Next, we identify the limiting reactant by computing the available moles of ethane and the moles of ethane consumed by 60.0 grams of oxygen:

$n_{C_2H_6}^{available}=15g*\frac{1mol}{30g} =0.50molC_2H_6\\n_{C_2H_6}^{reacted}=60.0gO_2*\frac{1molO_2}{32gO_2}*\frac{2molC_2H_6}{7molO_2} =0.536molC_2H_6$

Thus, we notice there are less available moles, for that reason, the ethane is the limiting reactant. Finally, we can compute the produced moles of water by:

$n_{H_2O}=0.50molC_2H_6*\frac{6molH_2O}{2molC_2H_6}\\\\n_{H_2O}=1.5molH_2O$

Best regards.

5 0

2 years ago

what is the molecular formula for a compound that is 39.99% carbon, 6.73% hydrogen, and 53.28% oxygen and has a molar mass of 18

4vir4ik [10]

Answer:

IDEK

Explanation:

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2 years ago

HELP! ASAP! Iron (Fe) and copper (II) chloride (CuCl2) combine to form iron (III) chloride (FeCl3) and copper (Cu). If you start

Helga [31]

Answer: 30.978

Explanation:

From the equation 2 moles of Fe will result in 3 moles copper

so .325 moles Fe will result in .4875 moles Cu

Cu weights 63.546 gm per mole

.4875 moles * 63.546 gm / mole = 30.978 gm of Cu

7 0

2 years ago

Cevabı atar mısınız lütfen

yawa3891 [41]

I’m sorry I don’t understand if you can may you say it in English?

4 0

2 years ago