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Ket [755]
2 years ago
14

Aisha drops an antacid tablet in water and times how long it takes to dissolve. Which of the following will decrease the reactio

n rate?
increasing water temperature
decreasing water temperature
using more water



What is the end result of a nuclear fusion reaction?
two new atoms with smaller nuclei form
molecule of atoms forms
one new atom with a larger nucleus forms
new bonds between atoms are formed



The chemical reaction between iron (Fe) and oxygen (O) results in the loss of electrons from iron. This reaction is an example of _____.
oxidation
respiration
combustion
sublimation
Chemistry
2 answers:
Natali5045456 [20]2 years ago
5 0

A -decreasing water temperature

madam [21]2 years ago
4 0
1. Decreasing the temperature of the water.
2. One new atom with a large nucleus forms.
3.The reaction is an example of oxidation.
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What causes polar bonds
yulyashka [42]

Answer:

Bonds are polar when one element in a compound is more electronegative than the other. This creates a dipole in the molecule where one end of the molecule is partially positive and one end is partially negative

Explanation:

8 0
3 years ago
Describe what does happen to the electrons when metal atoms are bonded together.
tankabanditka [31]

Answer: In metallic bonds, the valence electrons from the s and p orbitals of the interacting metal atoms delocalize. That is to say, instead of orbiting their respective metal atoms, they form a “sea” of electrons that surrounds the positively charged atomic nuclei of the interacting metal ions. Metals are shiny.

Explanation: Hope this helped!

4 0
2 years ago
If the pressure, volume, and temperature of a gas are known, which can most likely be found by using the ideal gas law?
alukav5142 [94]

Answer:

the moral amount of the gas.

5 0
2 years ago
A certain gas at 2oC and 1.00 atm pressure fills a 4.0 container. What volume will the gas occupy at 100oC and 780 torr pressure
artcher [175]

The final volume V₂=4.962 L

<h3>Further explanation</h3>

Given

T₁=20 + 273 = 293 K

P₁= 1 atm

V₁ = 4 L

T₂=100+273 = 373 K

P₂=780 torr=1,02632 atm

Required

The final volume

Solution

Combined gas law :

P₁V₁/T₁=P₂V₂/T₂

Input the value :

V₂=(P₁V₁T₂)/(P₂T₁)

V₂=(1 x 4 x 373)/(1.02632 x 293)

V₂=4.962 L

6 0
3 years ago
What is the percentage of water in the following compound? answer using one decimal place. sodium carbonate decahydrate, na2co3
ehidna [41]

The percentage by mass of water in Na2CO3.10H2O from the calculation is  62.9%

<h3>What is percentage by mass?</h3>

The term percentage by mass refers to the amount of a particular moiety by mass in a molecule.

In this case, we know that the molar mass of Na2CO3.10H2O is 286 g/mol the molar mass of the 10 moles of water is 180 g/mol hence the percentage by mass of water in the compound is; 180 g/mol /286 g/mol  * 100/1 = 62.9%

Learn more about percentage by mass: brainly.com/question/16885872

#SPJ2

6 0
2 years ago
Read 2 more answers
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