Amir wants to change this model to represent a different isotope of oxygen How could he make this change?
А
add one green candy
B
rearrange the blue candies
C.
add one red candy
D
take away two blue candies
Answers
Answer:
Option A. Add one green candy
Explanation:
From the question given above, the following data were obtained:
Red color => Proton
Green => Neutron
Blue => Electron
Isotopy is a phenomenon where by two or more elements have the same atomic number by different mass number due to the difference in the neutron number. The atoms involved are called isotopes.
From the above definition, isotope exist when the neutron number of the atoms are different with each having same atomic number (i.e proton number).
Thus, considering the question and the options given above, the only way to make a different isotope of oxygen is to add a green candy (i.e neutron).
Related Questions
Air can be considered a ____________ of gaseous elements and compounds.
A) heterogeneous mixture
B) homogeneous mixture
C) colliodal solution
D) suspension
Answers
Using the diagram below, which rock layer is older than the Chinle Formation?
A.carmel formation
B. moenkopi formation
C. temple cap formation
D. dekota formation
Answers
Answer:
moenkopi formation because layers further down are always older. think about it as a pile of laundry the clothes at the bottom of the pile were worn earlier in the week and are older and dirtier.
Explanation:
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Ahmed makes a Venn diagram to compare active transport and passive transport across the cell membrane.
Which label belongs in the region marked X?
Answers
Answer:
The labels are not given to represent but the correct answer would be one of these:
-Uses energy
- low concentration to high concentration movement
Explanation:
Active transport and passive transport both are transport methods of the molecules and substances in or out of the cell through the cell membrane. Passive and active transport has only one thing which is the movement of the substance through or across the cell membrane.
However, there are differences in these types of diffusion are:
Active Transport Passive Transport
-Uses energy - a form of diffusion
-Moves from low to high concentration - from high to low concentration
Answer:Is a form of diffusion
Explanation:Hopes this helps pls mark me brainliest if it does help
If 3.3167 moles of Al are produced, how many moles of
AlCl3 were reacted?
I
Answers
Answer:
3.3167 moles Of AlCl3
Explanation:
We'll begin by writing the balanced equation for the reaction. This is illustrated below:
3Ca + 2AlCl3 —> 3CaCl2 + 2Al
From the balanced equation above,
2 moles of AlCl3 reacted to produce 2 moles of Al.
Finally, we shall obtained the number of moles of AlCl3 that reacted to produce 3.3167 moles of Al as follow:
From the balanced equation above,
2 moles of AlCl3 reacted to produce 2 moles of Al.
Therefore, 3.3167 moles Of AlCl3 will also react to produce 3.3167 moles of Al.
Thus, 3.3167 moles Of AlCl3 is needed for the reaction.
How many electrons does Oxygen have?
Answers
Answer:
Easy.. 6 valence electrons
Answer:
I believe oxygen has 8 electrons.
How many moles of hydrogen atoms are
present in 15 moles of C2H6O?
Answer in units of mol.
Answers
=90
how many hydrogen(H) atoms are on the reactants side
A.2
B.6
C.12
D.6
Answers
8. Which of the following are reasons why Index fossils are chosen for determining ages of rocks? Select all that apply .
A Found commonly in rocks
B. Distributed over a very wide range
C. Are always dinosaurs
D. Limited life existence in geologic time.
Answers
Answer:
B. Distributed over a very wide range
D. Limited life existence in geologic time.
Explanation:
Index fossils are very unique fossils that helps in determining the relative ages of rocks and biostratigraphic correlation. They are usually called guide fossils.
Fossils are the preserved remains of dead organisms found in rocks. Index fossils are a special class of fossils with the following properties; They are widely distributed. They have a short stratigraphic range. They show rapid evolution trendsAnswer:
d and b
Explanation:
which is the correct choice
Answers
Which set of elements have the most similar chemical properties?
1. Potassium, Calcium, Scandium
2. Chromium, Cobalt, Copper
3. Nitrogen, Oxygen, Fluorine
4. Oxygen, Sulfur, Selenium
Answers
Answer:
4
Explanation:
Oxygen, Sulfur, Selenium
please help man i’ll reward brainliest ✊
Answers
Answer:
gAIN
Explanation:
i need all answerd please! this is all the points i have.
Answers
Answer:
give me more then I'll help
Explanation:
Answer:
1=4.684
2=97.013
3=41.5
4=7540
Bubble wrap is made of a series of air pockets sealed in a sheet of plastic and is often used to protect fragile objects during shipping. Bubble wrap tends to pop when stepped onto or squeezed. How can you explain this using Boyle's law?
Answers
Answer:
Explanation:
Boyle's law states that at constant temperature:
P [tex]\alpha[/tex] [tex]\frac{1}{V}[/tex]
PV = constant
Where: P is the pressure of a given mass of gas, and V is its volume.
The bubble wrap has a confined volume of air at constant temperature. Since a gas is easily compressible, the volume of the gas in the wrap decreases with increasing pressure. This implies that there is an inverse proportion relation between the pressure on and volume of the air.
The bubble wrap pops when stepped onto or squeezed because the pressure is high and the volume can not be compressed further. Thus, the elastic limit of the seal is exceeded. This leads to an escape of the confined air.
Which of the following theories did these discoveries lead to?
Answers
Answer:
Explanation:
the discovery of microscopes
Answer: A . The cell theory
Explanation:
Ed records the temperature of two pots of water. Pot X has a temperature of 56 degrees Fahrenheit, and pot Y has a temperature of 49 degrees Fahrenheit. What conclusion can Ed make about the pots of water? The water in pot X has more kinetic energy than the water in pot Y. The water in pot Y has more kinetic energy that the water in pot X. The water in pot X has a higher specific heat than the water in pot Y. The water in pot Y has a higher specific heat than the water in pot X.
Answers
Answer:
A) The water in pot X has more kinetic energy than the water in pot Y.
Answer:
A is the answer
Explanation:
Which of the following is a change in the earths surface caused by glaciers?
Answers
Are there any answer choices that go along with the question??
Scientists believe that there are three genes that contribute to skin color in humans.
Which of these best describes the inheritance pattern of skin color?
multiple allele in which offspring receive three alleles from each parent
multiple allele in which offspring receive three alleles from only one parent
polygenic in which offspring receive three alleles from each parent
polygenic in which offspring receive three alleles from only one parent
Answers
Answer:B
Explanation:
I took the test
Answer:
b
Explanation:
bjdcbndjcf jvhbf its just b
The nuclear symbol for uranium-235 should be written as
O U-235.
225
92 U
233
143U
OU
Answers
Answer:
²³⁵₉₂U
Explanation:
The right symbol for the nuclei is ²³⁵₉₂U;
For this chemical element, the atom is represented by the symbol U;
To the superscript before the symbol is the mass number
The subscript before the symbol is the atomic number
Mass number is the number of protons and neutrons
Atomic number is the number of protons.
can somebody please help me with these I literally have no idea what it’s asking
Answers
Answer:
I believe it's copper
Explanation:
The reasoning being that Copper = 9.0 g/cm and the mystery item has 5.0 cm so 9*5 = 45 something like that
Marcie believes that she has found a piece of obsidian. What causes obsidian to form?
Answers
Answer:
Quick cooling of Lava
Explanation:
such as: Water being poured, or cold climate
How many joules of energy are made by the loss of 100kg of mass using the formula E=mc2? please help!!!
Answers
Answer:
E = 3 × 10¹⁰ J
Explanation:
Mass, m = 100 kg
We need to find energy made by the loss of 100 kg of mass. The formula between the mass and energy is given by :
E = mc²
Where c is speed of light
Putting all the values, we get :
E = 100 kg × (3×10⁸ m/s)²
= 3 × 10¹⁰ J
So, the required energy is 3 × 10¹⁰ J.
