Answers
Answer:
C. 5 grams
Explanation:
The ratio is 2:1, which means everything on the right (B) will be half of the left (A). Since 10 is on the left, and half of 10 is 5, C is the answer
Related Questions
Conservation of Mass in Chemical Reactions: 7th grade Science
Question: In a chemical reaction, the total mass of the reactants is 10.0 grams. After the reaction, the total mass of the products must be
A. More than 10.0 grams
B. Exactly 20.0 grams
C. Exactly 10.0 grams
D. Less than 10.0 grams
Answers
Answer:
After the reaction, the total mass of the products must be D. Less than 10.0 grams
The characteristic bright–line spectrum of potassium is produced when electrons
A) jump to higher energy levels
B) return to lower energy levels
C) are lost by neutral potassium atoms
D) are gained by neutral potassium atoms
E) are released from the nucleus
Answers
Answer: B.
Explanation:
When the electron changes levels, it decreases energy and the atom emits photons. The photon is emitted with the electron moving from a higher energy level to a lower energy level. The energy of the photon is the exact energy that is lost by the electron moving to its lower energy level.
Hope this helps!
12. A malleable sheet of metal used to wrap food in the kitchen is made of only aluminum. What can be said about the metal sheet?
Answers
Answer:
is aluminium prepared in thin metal leaves with a thickness less than 0.2 mm (7.9 mils); thinner gauges down to 6 micrometres (0.24 mils) are also commonly used.[1] In the United States, foils are commonly measured in thousandths of an inch or mils. Standard household foil is typically 0.016 mm (0.63 mils) thick, and heavy duty household foil is typically 0.024 mm (0.94 mils). The foil is pliable, and can be readily bent or wrapped around objects. Thin foils are fragile and are sometimes laminated with other materials such as plastics or paper to make them stronger and more useful. Aluminium foil supplanted tin foil in the mid 20th century.
What is the mass of 18.5 moles of iron?
Answers
Answer:
1 mole =56 g
18.5 moles =56×18.5
=1036 moles Hope this helps you Stay happy and safe Do mark as brainliest ✌️? divided by 230 equals 273.1
PLZ HELP I NEED IT
Answers
Answer:
Explanation:
X / Y = 230
The answer is infinite. However, below we have created a list of what divided by what equals 230.
230 / 1 = 230
460 / 2 = 230
690 / 3 = 230
920 / 4 = 230
1150 / 5 = 230
1380 / 6 = 230
1610 / 7 = 230
1840 / 8 = 230
2070 / 9 = 230
2300 / 10 = 230
In a solution, the particles of different substances are ___ a. mixed evenly, b. never mixed, c. mixed unevenly, d. separated from each other. PLEASE ANSWER ASAP TY
Answers
When creating a solution, the different particles break down and combine with each other, hence why it’s called a solution, it’s creating a new solution. You can evenly mix a mixture, but it wouldn’t create a substance. So it should be D, as that is the only one that would apply to substances.
I WILL MARK BRAINLIST TO WHOEVER SHOWS FULL STEPS PLEASE LOOK AT THE IMAGE ABOVE
Answers
Answer:
+47°C
Explanation:
ΔT means change in temperature. If the change is positive, it means that heat was added and the temperature went up.
ΔT = final temp - initial temp
ΔT = 86°C -39°C = + 47°C
Which of the following statements is true about atoms?
Answers
Answer:
D
Explanation:
A car with a mass of 800 kg is accelerated with a force of 6000 N. If resisting forces are ignored, what is the acceleration of the car? yen
Answers
Answer:
The answer is 7.5 m/s²Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
[tex]a = \frac{f}{m} \\ [/tex]
f is the force
m is the mass
From the question we have
[tex]a = \frac{6000}{800} = \frac{60}{8} = \frac{15}{2} \\ [/tex]
We have the final answer as
7.5 m/s²Hope this helps you
All surfaces have texture, which means it affects how things move over it. When it takes a long time for friction to slow down an object, what is most likely true about the surface the object is moving on? The surface is dry. The surface is rough. The surface is uneven. The surface is smooth.
Answers
The question is incomplete, the complete question is;
All surfaces have texture, which means it affects how things move over it. When it takes a long time for friction to slow down and object, what is MOST LIKELY true about the surface the object is moving on? (A) The surface is dry (B) The surface is rough (C) The surface is uneven (D) The surface is smooth
Answer:
(D) The surface is smooth
Explanation:
Friction exists because of relative motion between two surfaces in contact with each other. However the magnitude of friction depends on how rough or smooth the surface is.
For smooth surfaces, there is little or no resistance to motion as objects move over the surface. Hence objects take a longer time to slow down on a smooth surface due to very little friction.
On a rough surface, objects tend to slow down relatively quickly. Hence, less resistance to motion on a smooth surface makes an object to take a longer time to slow down on a smooth surface than on a rough surface.
Answer: D
Explanation: Because if the surface is smooth it causes it to be more even for it to be able to cause Friction
if you find this helpful, Your welcome, if not, sorry.
How many grams of sulfuric acid contain 32 g of
oxygen atoms?
Answers
Answer:
One mole of oxygen gas, which has the formula O2, has a mass of 32 g and contains 6.02 X 1023 molecules of oxygen but 12.04 X 1023 (2 X 6.02 X 1023) atoms because each molecule of oxygen contains two oxygen atoms.
Explanation:
Sabrina was asked by a classmate why she would place hydrogen in the first column of the periodic table. Which of the following reasons could she give as a response? I. Hydrogen combines with chlorine in the same atomic ratio as sodium. II. Hydrogen is a gas at room temperature. III. Hydrogen forms diatomic molecules.
Answers
Answer:
the third option I think
Explanation:
Answer:
3 and 2
Explanation:
i had that question
Which of the following happens to the particles when the temperature of liquid water drops?
Answers
Explanation:
when water is in liquid form and the temperature DROPS it becomes solid ice the process is melting , freezing and evaporation this goes in a circle
Calculate the density in grams per cubic centimeter of a material that has a mass of
720 milligrams and a volume of 10.0 cubic centimeters. =
Answers
Answer:
1.72 g/cm ^3
Explanation:
HELP ME OUT PLEASE!! I NEED HELP !
This diagram represents one of the four levels of industry. Which term best
completes the diagram?
Factory employees
Oil refinery workers
Butchers
A. Quaternary sector
OB. Secondary sector
C. Tertiary sector
D. Primary sector
Answers
Answer: OB. Secondary Sectors.
Explanation: Make sure to study as the text provided, and study guide state manufacturers, butchers, and factory employees are apart of the secondary sector in the world economy. You’ll do great on Quiz 3.2.5! Make sure to study, have a g’day. Please don’t listen to people who say this answer is falsen as many other questions do, don’t be the one to spread false information as this people’s academics, here’s a picture as well ❤︎. Again, its B!
With circulation, the heart provides your body with:
a. oxygen
b. nutrients
C. a way to get rid of waste
d. all of the above
Answers
Explanation:
The lungs pump oxygen in and carbon dioxide out, which goes through the blood stream to help with the cell's energy needs.
Nutrients pass through the blood stream as well. The nutrients start with the digestive system (mouth, esophagus, stomach, small intestine) before going into the blood stream. The nutrients are building blocks to help make new cells when old ones die off.
When those cells die off, the body sheds them like dead skin, but internal dead cells are passed off as waste. This waste and other byproducts the body doesn't need passes through the blood stream as well.
In short, the blood stream is basically the highway to help get desired materials (eg: oxygen and nutrients) and get rid of waste (eg: carbon dioxide and other unwanted byproducts or dead cell material)
So that's why the answer includes A, B and C.
please answer this question pls
Answers
what's the question?
Answer:
The answer is: That there is no answer
Explanation:
Um yeah if you want us to answer a question you gotta give us the question...
Temperature is a measure of the average _____energy of particles in a substance.
Answers
Answer:
kinetic energy
Explanation:
Answer:
kinetic energy
Explanation:
In physics, the kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes.
what "waste" does the blood cell drop off at the lungs .... ANSWER ASAP AND I POINT EXTRA
Answers
Answer:
it drops off of carbon dioxide... but i believe when the blood returns to the heart it " travels" through the pulmonary veins...
use your brain :) brainliest pweasee?
A rock occupies a volume of 20 cm3 and has a mass of 54 grams. Find the density of this rock
Answers
Answer:
2.7 gm/cm cubed
Explanation:
To get the answer, you should divide the mass by the volume or 54 divided by 20 = 2.7
is it true that the atomic radius of A1 is greater than the atomic radius of In ?
Answers
Answer:
Yes
Explanation:
Yes it is true
1. The human eye can detect wavelengths of light as short as 0.000037 cm. What is this
wavelength in nanometers?
Answers
Answer:
0.000037 cm is 370 nanometers
Explanation:
PLEASE HURRY (WILL MARK BRAINLIEST)
What happens when the sound waves released by a bat hit an object?
The sound waves are diffused.
The sound waves are reflected.
The sound waves are refracted.
The sound waves are absorbed,
Answers
Answer:
B.) The sound waves are reflected.
Explanation:
On edge,
i also answered so the other person could get the brainliest
Answer:
b
Explanation:
Help me please
Chemical energy is a form of_______ energy
A. heat
B. kinetic
C. potential
D. electromagnetic
Answers
Answer:
potential
............
Answer:
Chemical energy is a form of potential energy.
Identify the techniques used to separate the components of the given mixtures.
1. Faucet with cloth
2. Nails attracted by magnets
3. Pouring off liquid from rice
4. Sorting buttons with different colors
5. Use of sieve to produce finer sand
Answers
Answer: 1.valving , 2. picking, 3. decantation , 4. sorting, 5. seiveing
Thank me later!
Why can two water molecules stick to each other?
Answers
Will cardboard sink in cold or hot water faster
Answers
Elements can be described by their properties. Some of these properties are physical properties and some are chemical properties Observe the list provided. Which one of these contains ONLY Cchemical properties
A) C,E,F
B) B,C,E
C) B, E, F
D) C,D,E
Answers
Its a c,e,f
Sadly i got it wrong
Flammability, Ability to rust and Ability to tarnish (C,E,F) are chemical properties of an element.
The property of an element is the characteristic feature of that element which helps us to differentiate it from another element.
We have
The Physical proprieties- These are features of an element which we can identify by sight and touch, Some of them include colour, hardness, boiling and ,melting point, size etcChemical properties These are the features of an element which w\e observe when the element has undergone a chemical change which changes its composition. Examples are Flammability, rust, tarnish , corrosion etc.See more here:https://brainly.com/question/2116116
Describe the difference between balanced forces and unbalanced forces.
Answers
Answer:
If two individual forces are of equal magnitude and opposite direction, then the forces are said to be balanced. An object is said to be acted upon by an unbalanced force only when there is an individual force that is not being balanced by a force of equal magnitude and in the opposite direction.
A runner completes a 400m race in 43.9s. What is his average speed?
Answers
Answer:
average speed around 9.1 meters/second
Explanation:
400 divided by 43.9