Answer:
Explanation:
An atomic mass unit (symbolized AMU or amu) is defined as precisely 1/12 the mass of an atom of carbon-12. The carbon-12 (C-12) atom has six protons and six neutrons in its nucleus. In imprecise terms, one AMU is the average of the proton rest mass and the neutron rest mass.
which has the greatest amount of energy a glass of water at 20 degrees or a glass of water at 80 degrees
Answer:
80 degrees
Explanation:
if you think about it 80 degrees is hotter than 20 degrees if I'm not right tell me in the comments please
Questions
Answer all please
Answer:
Both,
Both,
Vertical
Explanation:
When you push a lawn mower, you can be moving up and down or across, when your pushing a wheel barrel you can do the same, when you do a push up your going up and down which is vertical.
Please help me, please
Answer:
A. Metal
Explanation:
Hope this helps! :)
If this wasn't what you were looking for please don't hesitate to comment again! Have a nice day/night! :)
Answer:
Metal
Explanation:
they deleted my answer so I am putting it back sorry
Madison was reading about force in her science textbook and came across a lab that she wanted to do. Madison took detailed notes of the lab produce to use the next day what specific process is Madison demonstrating by conducting the experiment
Answer:
what i dont understand the question
Explanation:
Which element is commonly found in meteorites?
carbon
oxygen
iron
hydrogen
Answer:
Hello!!! Princess Sakura here ^^
Explanation:
The most commonly found element is oxygen.
Answer:
Iron
Explanation:
I took the quiz
Identify the independent and dependent variables in the following experiment: A scientist grew bacteria on the gel in her lab. She wanted to find out if the bacteria would grow faster on gel A or gel B. She placed a few bacteria on gel A and a few on gel B. After 24 hours, she observed how many bacteria were present on each type of gel.
The dependent was before she started changing them and the independent variable is the process of them changing.
The independent variable is the type of gel, the dependent variable is the growth rate of the bacteria.
Dependent variables and independent variables are terms used in mathematics, statistics, and other experimental sciences. Each of them is characterized by:
Dependent variable: Its value is the result of a series of variable conditions that are modified on purpose.Independent variable: These are variables that are modified on purpose to show a phenomenon and obtain a result in a dependent variable.According to the above, in the situation presented, the independent variable is the type of gel because two types of gel are used, to obtain different results according to the characteristics of each gel.
Additionally, the dependent variable of this experiment is the growth rate of the bacteria under different conditions (gel A and gel B).
Learn more in: https://brainly.com/question/1479694
1. Compare an element, compound and mixture.
Answer:
An element contains just one type of atom. A compound contains two or more different atoms joined together. A mixture contains two or more different substances that are only physically joined together, not chemically. A mixture can contain both elements and compounds.
Explanation:
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Which number indicates the energy level of an atom's valence electrons?
O A. The period number
O B. The group number
O c. The atomic number
O D. The mass number
Answer:A, The Period Number
Explanation:
just took the test
what property of material does salt possess
Answer:
Salt crystals are translucent and cubic in shape; they normally appear white but impurities may give them a blue or purple tinge. The molar mass of salt is 58.443 g/mol, its melting point is 801 °C (1,474 °F) and its boiling point 1,465 °C (2,669 °F).
What is a cinder cone volcano composed of after it erupts to form a volcano?
Answer:
They are built from particles and blobs of congealed lava ejected from a single vent. As the gas-charged lava is blown violently into the air, it breaks into small fragments that solidify and fall as cinders around the vent to form a circular or oval cone.
Explanation:
hope it helps :)
Which is the best way to determine if an object is made of pure silver?
Answer:
The Nitric Acid Test is used to check if silver is pure or plated. To do so, file a small part of the item in a discreet area where it cannot be seen. Apply a few drops of nitric acid. If the area turns into creamy white, the silver is pure or sterling.
Explanation:
What trend does the atomic radius follow along a period on the periodic
table?
O A. The atomic radius gets smaller the farther right it appears on the
periodic table.
O B. The atomic radius stays constant across the periodic table.
O C. The atomic radius increases as the number of protons increases
across the table.
O D. The atomic radius gets larger the farther right it appears on the
periodic table.
What is the pneumonic of the metric line
Answer:
Explanation:
Mnemonic Device: Kings Hate Dragons Because Dragons Can't Make Money. Explanation: to remember the Metric prefixes, or the decimal ladder, and base unit (Kilo, Hecto, Deca, Base, Deci, Centi, Milli, Micro).
If we compare and contrast the three liquids seen in the jar, the BEST explanation would be that
A)
water is lighter than oil and syrup.
B)
syrup is the thickest liquid of the three.
oil is the least buoyant of the three liquids.
D)
water is denser than oil but less dense than syrup.
Answer:
the answer is d
Explanation:
What would happen if you mixed baking soda and milk?
Answer:
it'll produce carbondioxide bubbles
Answer:
it would prevent the milk from curdling
Explanation:
baking soda is regularly added to milk, believe it or not
10, What is the Dependent Variable?
What do animals do with the carbon dioxide produced in their cells during cellular respiration?
A Store it for later use.
B Reuse it during photosynthesis.
C Exhale it in the breathing process.
D Combine it with water to make sugar.
Answer:
c
Explanation:
animals are not plants
Answer:
C Exhale it in the breathing process they release it back
4Al(s) + 3O₂(g) --> 2Al₂O₃, how many atoms are there? *
10 points
Answer:
12 atoms
but u said there are 10 pts but only 5 are there
Answer:
[tex]6.02 \times {10}^{24} \: atoms[/tex]
Step-by-step explanation:
Number of atoms of Al = Number of moles of Al × Avogadro constant
[tex] = 4 \times 6.02 \times 10 ^{23} [/tex]
[tex] = 2.408 \times 10 ^{24} \: atoms[/tex]
Number of atoms of O = Number of moles of O × Avogadro constant
[tex] = 6 \times 6.02 \times {10}^{23} [/tex]
[tex] = 3.612 \times 10 ^{24} \: atoms[/tex]
Total number of atoms
[tex] = 2.408 \times {10}^{24 } + 3.612 \times {10}^{24} [/tex]
[tex] = 6.02 \times {10}^{24} atoms[/tex]
The outside temperature is
35°C. What is the temperature in
K
Answer:
308.15
Explanation:
308.15K − 273.15 = 35°C
What is the percent error if the measured value is 30.0 g and
the accepted value is 32.0 g?
Answer:6.25
Explanation:
Answer:
6.25
Explanation:
Select the correct answer.
Which formula describes Newton's second law of motion?
OA force = mass x acceleration
rn abs
OB. force =
acceleration
Ос, force = mass x velocity
OD force =
velocity
mass
The correct answer describes Newton's second law of motion : A. Force = mass x acceleration (F=m.a)
Further explanationNewton's 2nd law states that :
the acceleration from the applied force is proportional to the resultant force and inversely proportional to the mass
Can be formulated
[tex]\tt a=\dfrac{F}{m}[/tex]
or
[tex]\tt F=m\times a[/tex]
F = force, N
m = mass, kg
a = acceleration, m/s²
A solid rubber ball with a mass of 5.9 grams sank in water. A hollow rubber ball with the same mass floats in water. Explain why this might be. Please answer ASAP!
Answer:
The hollow ball is more buoyant than the solid ball.
Explanation:
The hollow ball will float while the solid ball sinks because the volume of water displaced by the hollow ball is more than that displaced by the solid ball.
An object floats when it displaces a volume of water equal to its weight. A solid ball is more compact, and hence, does not displace a lot of water when dropped into a bowl full of water. On the other hand, the hollow ball will have a larger curved surface area, since it has no fill. This will make it displace a larger volume of water and hence make it float.
ASAP MULTIPLE CHOICE WILL MARK BRAINLIEST
What did Ernest Rutherford's model of an atom look like?
plum pudding
a random mixture of protons, neutrons, and electrons
a single, individual atom
a nucleus surrounded by electrons
Answer:
A single individual atom
Explanation:
The atom has a tiny massive core called the nucleus. It contains positive energy called the protons and negative charge called the electrons. The empty space b/w the nucleus and the electron takes up most of thr volume of the atom.
Please correct me if I'm wrong.
Answer:
A nucleaus surronded by electrons
Use the drop-down menus to indicate the stage of technological design in which each action would occur.
Answer:
Use the drop-down menus to indicate the stage of technological design in which each action would occur.
✔ Design a solution.
Establish criteria and prepare the initial design.
✔ Evaluate a solution.
Redesign and retest as necessary.
✔ Identify a problem.
Define a need and research related information.
✔ Implement a solution.
Build and test a prototype.
Explanation:
Took the quiz
Answer:
Design a solution: establish criteria and prepare the initial design.
Evaluate a solution: redesign and retest as necessary.
Identify a problem: define a need and research related information.
Implement a solution: build and test a prototype.
Hydrogen gas caught fire quickly in the Hindenberg accident. In comparison, neon gas and helium gas are nonreactive. This is why helium is safe for aircraft and neon is safe for electrical signs. Which statement best explains why helium and neon have similar chemical properties?
Answer:
Helium and Neon have similar chemical properties because both of them completely fill the outer shell of their atoms' electrons, so there is nothing to share with other atoms, neither with the same element nor with any other element.
Explanation:
Helium and Neon are both noble gases . As elements react, their atoms, by losing, acquiring, or sharing electrons, complete their outer shells. Noble gas atoms already have full outer shells, so there is no tendency for them to lose, gain, or share electrons. There are incomplete outer shells of atoms of group 1 and 7 elements (so they are reactive)
Chemical properties of HELIUM and NEON -:
In group 8(or 0) of the periodic table, on the far right side, the Noble Gases are contained. Helium, neon, argon, krypton, xenon and radon are their names. They are extremely colourless and unreactive. They do not form bonds, so they still remain as single (monatomic) atoms. There is very little chemical reactivity in them.Hence, helium and neon have similar chemical properties as they are the most stable due to having the maximum number of valence electrons their outer shell can hold.
Which of the following is NOT how compounds are formed?
Group of answer choices
Atoms give away electrons to other atoms
Atoms accept electrons from other atoms
Atoms share electrons with other atoms
How do particles in the most rigid state of matter move? A. They stay close together and vibrate in place B. They move freely from one place to another within their container C. They stay close together and slip past one another D. They bounce off one another and the slides of their container
Answer:
A: they stay close together and vibrate in place
Explanation:
assuming the most rigid state would be a solid, thats how particles of a solid move
Answer:
A
Explanation:
particles in the most rigid state (soilds) vibrate on the spot
each particle is attached to several others so they cant move freely
Calculate the volume in L of 14.25 g of Oz gas at STP.
When a substance undergoes a chemical change its identity does not change true or false
What is the percentage of propane in natural gas??