Answer:
Kwaishokor is a form of severe protein malnutrition characterized by edema and an enlarged liver with fattty infiltrates.
Explanation:
Q5 4.70 g of methanoic acid reacts to form 3.60 g of methanoic
anhydride. The equation for this reaction is:
2HCOOH + (CHO),0 + H2O
Calculate the percentage yield of this reaction.
Answer:
The anwser is always Jesus.
Explanation:
Things can only go downhill from here
A certain atom has 20 electrons, 21 neutrons, and 20 protons. What is the atomic mass of the atom?
Which best explains why water boils in a pot sitting over fire?
Heat energy is created from the thermal energy in the air.
Heat energy is transferred from the water to the fire.
Thermal energy from the fire moves to the water in the form of heat.
Thermal energy from the surrounding air moves to the water.
Answer:
C
Explanation:
Thermal energy from the fire move to the water in the form of heat.
Answer:
correct option C
Explanation:
what does it mean to have a fair test?
Answer:
to make sure that you change one factor at a time while keeping all other conditions the same.
Explanation:
Answer:
A test with the same control variable
Explanation:
Say you're testing mentos and coke, you have to use the same type of mentos and coke to keep it fair. the only thing you change is the independent variable which would be the number of mentos in this case.
I have learned that the law of acceleration can be applied in the
following situations
1.
2.
3.
helpppp poooooo
Answer:
See explanation below
Explanation:
Let's recall what's the law of acceleration.
First of all, the acceleration is a vector that has the change of velocity in function of the time.
Now, the law of acceleration is related to Newton's Second law which states that an object will move only if there are forces around it. In other words, the following expression:
F = m . a
Now, in this case, we know that the acceleration of an object is affected by a force always. So, if an object stand still, it will not move unless you push it or pull it to move, and the acceleration will speed up or down depending of the force it was exerted.
According to this, the law of acceleration can be applied here:
1. A bike going down a hill. Of course, because, let's suppose you let a bike alone go down on a hill, you will see that the speed of the bike will be faster as time goes by. This is because the force acting here is the weight of the bike and gravity.
2. Dropping a ball from a building. In this case, you drop a ball from a high floor on a building, it will happen the same thing as the bike. It will go faster because of gravity.
3. Putting the break on a car. Now in this case it's easy because you only need to know that when you put the brakes, the speed of the car will go down, but also the acceleration. So there's no need of a further explanation of this.
Hope this helps
If the value of volume doubles but the mass stays
the same, the value for density will be
1.double
2.the same
3.halved
Answer:
halved
Explanation:
density decreases when volume increases if mass is kept constant density is defined as mass divided by volume.If the value of volume doubles, but the mass stays the same, the value for density will be halved. The correct option is 3.
What are volume, mass, and density?Density is the mass per unit volume. Density is a scalar quantity. It is denoted by d and the symbol for density is given as rho, a Greek symbol. Density is calculated as mass divided by volume.
Mass is the quantity of matter in a physical body. The product of the molar mass of the compound and the moles of the substance are defined as mass.
Volume is the space occupied by a three-dimensional object. Volume is calculated by dividing mass by density.
These three factors are related to each other. If two variables are given, the third can be calculated.
Thus, the correct option is 3. Halved.
To learn more about volume, mass, and density, refer to the link:
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What happens to the density of a substance when it is heated? Explain your answer.
Heating a substance causes molecules to speed up and spread slightly further apart, occupying a larger volume that results in a decrease in density. Cooling a substance causes molecules to slow down and get slightly closer together, occupying a smaller volume that results in an increase in density.
From: www.middleschoolchemistry.com
I'm not sure which category this is. But please help me on this!!
Two piles of heavy boxes must be lifted onto a shelf. Each pile has 20 boxes and each box is the same size and weight. Tom and Claudia are each responsible for a pile. Tom lifts each box straight up from the pile to the shelf. Claudia places a long, gradual ramp that leads from the pile to the shelf. She pushes each box up the ramp until it rests on the shelf.
(Tom used more force.)
Compare the distance each person moved each box. Who moved the boxes a longer distance?
Answer:
Tom
Explanation:
Simply because we see Claudia used a shortcut. Tom uses more physical force than Claudia, since Claudia only had to push the boxes into there required shelves.
PLEAZE HELP!!!
Calculate the volume of a liquid with a density of 5.35 g/mL and a mass of 62.0 g.
Answer to the proper significant figures and include the proper unit.
My answer was 11.6 mL, but it was wrong.
Answer:
V= 12mL
Explanation:
you had the right idea with your Significant figures however, when we divide we see that it requires 2 significant figures as our least amount. this is because when looking at our division, 62 has 2 sig. fig. while 5.35 has a total 3. when looking at your answer we see that you had a total of 3 sig. figures. so in actuakity you had to round up to 12 and not to the tenths because the decimal makes .6 count as your third sig fig.
Show all work: A metal bar has a length of 5.0 cm, a width of 3.0 cm, and a height of 1.0 cm. What volume of water, measured in deciliters, would this bar displace?
15 cm
and I have to explain but there's nothing to explain so yea
Based on the chemical equation provided, use the drop-down menu to choose the coefficients that will balance the
chemical equation.
102
DH20
1)H₂ +
-
Answer:
2(H2) + 1(O2) = 2 (H2O) is the balanced equation
Answer:
(2)H2O
(2)H2
(1)O2
Explanation:
it's not 2 1 2
or
2 1 1
emelie is working on a science project. her task is to answer the question does rogooti a hair cream sold on tv affect the speed of hair growth in length her family is willing to volunteer for the experiment
Answer:
This question is incomplete and unclear; the complete question including the missing part is:
Emelie is working on a science project. Her task is to answer the question:
"Does Rogooti (a hair cream sold on TV) affect the speed of hair growth
(in length)". Her family is willing to volunteer for the experiment. Identify the control group (CG) and the independent and dependent variables.
ANSWER:
Independent variable: Rogooti hair cream
Dependent variable: Speed of hair growth/length
Control group: Family members that do not use the Rogooti hair cream
Explanation:
In an experiment, the independent variable is the variable that the experimenter changes or manipulates in order to bring about a measurable response. In this case, the ROGOOTI HAIR CREAM is the independent variable.
Dependent variable refers to the variable that is measured or the variable that responds to the change made to the independent variable. In this case, the dependent variable is SPEED AT WHICH HAIR GROWS (IN LENGTH).
Control group in an experiment is the group that does not receive the experimental treatment. In this case, the experimental treatment is the Rogooti hair cream, hence, the control group will be the VOLUNTEER FAMILY MEMBERS THAT DOES NOT RECEIVE THE ROGOOTI HAIR CREAM ON THEIR HAIR.
How do you convert 34.6 kilograms to micrograms?
Also the Steps that got you that answer
When fat comes in contact with sodium hydroxide, it produces soap and glycerin. Determine whether this is a physical change or a chemical change. Explain your answer.
Explanation:
Answer. What comes in contact with Sodium Hydroxide to form soap and glycerine it is a chemical change because you cannot reverse this change and also the products formed are the results of a chemical reaction
Answer:
Its a chemical change because its property is changed.
Explanation:
Which statement describes potential energy?
A energy of motion
B.stored energy
C energy due to heat
D. used energy
Answer:
B. stored energy
hope this helps!!
which terms are used to identify pure substances
Answer:
Number 2:
Element and compound
How does the goal of science compare to the goal of
engineering?
Answer:
The goal of science is compared to engineering because engineering is there to solve problems while science is to explain natural phenomena
Explanation:
An atom of potassium has 19 protons and 20 neutrons. Its mass number is
Answer:
the mass no. is 39.0983 that is... 40
you find a 2cmsquared piece of pure gold with a mass of 38.6 g. what is it's density?
Answer:
First change cm in m and mass is 38.6g. Volume. =200m
Explanation:
Now,
Density =mass /volume
38.6/200
0.193 density
Name the intermolecular force in the compound N = O
Identify the number of significant figures in the following number: 0.0008
If Neon atom has 10 protons and 12 neutrons, what would be this
Atom's mass number?
Answer:
Hmmmm, Z=10 the element is not fluorine, and its not sodium.
Explanation:
If you are doing your chemistry homework, you must have a Periodic Table beside you. You will also be supplied a Periodic Table in every test in Chemistry and Physics you will ever sit. So get your Periodic table, and consider the following. It has 10 electrons, 10 fundamental negative charges. Since the element is neutral, it has 10 fundamental positive charges, 10 protons, in its nucleus. In the nucleus there are also 12 massive, neutral particles, 12 neutrons. The number of protons, Z, defines the atomic number, and the Periodic Table is arranged according to Z.
.
Gold atoms can be identified based on the number of which subatomic particles?
A. Protons
B. nuclei
C. electrons
D. neutrons
Answer:B
Explanation:
what type of compound is iron (3) oxide
Answer:
B Group Salt (Ionic Bond)
Explanation:
Iron (III) Oxide
Fe2O3
Answer:
Carbon Trioxide
Explanation:
5.) You bought a new car and estimated that your monthly payment would be $312. However, your actual
payment amount is $325. How much error was in your estimate?
what happens when you microwave a chip bag....
(asking for a friend)
Answer:
i have done this before
Explanation:
the bag just starts shrinking after sparkling a little bit
first 30 elements with their atomic mass
A few important ones........
Pls help me asap ❤️ i need HELP
Answer:
whats the question, can't help if I don't know the question
Which is the electron configuration for nobelium (No)?
[Rn]7s25f14
[Rn]7s25f7
[Ne]3s23p7
[Xe]6s25d1
Answer:
[Rn]7s25f14
Explanation:
[tex][Rn]5f^{14}7s^2[/tex] is the electron configuration for nobelium (No).
Explanation:
The electronic configuration of an element is the distribution of its electrons in different energy levels around the atomic nucleus.It is written with help of an atomic number of an element.Given:
The element nobelium.
To find:
The electronic configuration of nobelium
Solution:
The atomic number of nobelium is 102.
The number of protons = Atomic number = 102
The number of electrons = Number of protons = 102
There are 102 electrons in atom nobelium and they will be filled according to the Aufbau rule that the electron will be filled in a subshell with lower orbital energy.
The electronic configuration of nobelium :
[tex][No]=1s^22s^22p^63s^23p^63d^{10}4s^24p^64d^{10}5s^25p^64f^{14}5d^{10}6s^26p^65f^{14}7s^2[/tex]
Or we can also write the above electronic configuration as:
[tex][No]=[Rn]5f^{14}7s^2[/tex]
[tex][Rn]5f^{14}7s^2[/tex] is the electron configuration for nobelium (No).
Learn more about electronic configuration here:
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There are many different kinds of metals found inside the Earth. Gold and silver are two metals used in jewelry because of their shiny appearance and their ability to bend and shape easily. Which of the following characteristics represents the ability of a substance’s shape to be bent?
A. luster
B. boiling point
C. melting point
D. malleability
Answer:
it is ductile
Explanation:
because malleability is made into thin sheets
