I only have 3 questions left for this, please help!!!!

Chemistry

2 answers:

kakasveta [241]2 years ago

6 0

X is girl, and y is boy, they are formed by fission.

Ludmilka [50]2 years ago

3 0

Answer:

3: Atoms X and Y will have a smaller atomic mass than atom Z

7: Fissile

8: It is used in nuclear power plants

Explanation:

The process of nuclear fission is where one unstable atom (in this case atom Z) splits into two smaller atoms (atoms X and Y) and releases energy in the form of radiation.

Hence, the combined atomic mass of X and Y cannot be grater than the mass of atom Z, fission does not need to be at high temperatures to take place, and the mass of element X will never equal the mass of element Z.

In nuclear fission, the energy is produced by the decay of radioactive elements, and that energy can not be obtained by <u>combustion</u>. Stable elements will not undergo fission, and low mass elements tend to be very stable too.

The energy produced from nuclear fission is not always controllable, that is why disasters such as nuclear meltdowns happen, because the energy output cannot be controlled. The atoms in the sun undergo fusion, and not fission. Once again, nuclear fission does not require high temperatures (nuclear fusion does, hence why the sun has such a high temperature).

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PI3Cl2 is a nonpolar molecule. Based on this information, determine the I−P−I bond angle, the Cl−P−Cl bond angle, and the I−P−Cl

alexdok [17]

Answer: Yes I-P-Cl = 90

Explanation:

This is because the angle formed between I-P-Cl is perpendicular hence the angle is 90°

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2 years ago

The reaction na 3po 4( aq) 3 agno3( aq) → ag 3po 4( s) 3 nano 3( aq) is best classified as a(n):_____.

Ugo [173]

The reaction $Na_{3} PO_{4} ( aq) +3AgNO_{3} (aq)$ → $Ag_{3} PO_{4} ( aq) +3NaNO_{3} (aq)$ is best classified as double displacement reaction.

Those reaction in which two compounds react by exchanges of ions to form two new compounds is called double displacement reaction. The easiest way to identify double displacement reactions is to check to see whether the cations exchanged anions with each other or not . Always balanced chemical equation is used to determine.

There are three types of double displacement reaction which is given as,

Precipitation
Neutralization
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The real world example of double displacement reaction is combining vinegar and baking soda to create homemade volcano.

learn more about double displacement reaction

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6 0

1 year ago

In a titration experiment, hcl and lioh solutions were used. the initial volume of hcl was 1.25ml and lioh was 2.65 ml. the fina

aliya0001 [1]

Answer is: <span>the molarity of HCl is </span>0.097 M.
Chemical reaction: LiOH + HCl → LiCl + H₂O.
V(HCl) = 13.60 mL - 1.25 mL = 12.35 mL.
V(LiOH) = 11.20 mL - 2.65 mL = 8.55 mL.
c(LiOH) = 0.140 M.
From chemical reaction: n(LiOH) : n(HCl) = 1 : 1.
c(HCl) · V(HCl) = c(LiOH) · V(LiOH).
c(HCl) = 8.55 mL · 0.140 M / 12.35 mL.
c(LiOH) = 0.097 M.

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3 years ago

Sterling silver contains silver and copper metals. if a sterling silver chain contains 17.6g of silver and 2.40g of copper, what

Bogdan [553]

Answer:- 0.88

Solution:- Masses of silver and copper metals are given and we are asked to calculate the percentage of silver in the alloy.

mass percent of Ag = $(\frac{mass of Ag}{mass of alloy})*100$