What is the mass, in amu, of an atom with one proton and two neutrons?

Answers

Answer 1

mass of proton mp=1.672621898e-27 kg and 1 amu=1.66053904e-27kg so it’s just divition (1.672621898e-27 / 1.66053904e-27) =1.007276 amu

Answer 2

Answer:

hi

Explanation:

hi


Related Questions

The most valuable part of the carcass is the

Answers

Answer:

The rib and loin, because of their palatability and diversity in how they can be used--especially on the market.

Explanation:

Help me please
Answer & exp.

Answers

Explanation:

Some Rules Regarding Oxidation Numbers:

- Hydrogen has oxidation number of + 1 except in hydrides where it is -1

- Oxygen has oxidation number of -2 except in peroxides where it is -1

- Some elements have fixed oxidation numbers. E.g Halogen group elements has oxidation number of -1

- Oxidation number of a compound is the sum total of the individual elements and a neutral  compound has oxidation number of 0.

A. HI

Hydrogen has oxidation of + 1

Oxidation number of I:

1 + x = 0

x = -1

B. PBr3

Br has oxidation number of - 1

Oxidation number of Pb:

x + 3 (-1) = 0

x = + 3

C. KH

Hydrogen has oxidation of + 1

Oxidation number of K:

1 + x = 0

x = -1

D. H3PO4

Hydrogen has oxidation number of + 1

Oxygen has oxidation number of -2

Oxidation number of P:

3(1) + x + 4(-2) = 0

3 + x - 8 =0

x = 5

True or false: All molecules or atoms in a substance have the same amount of kinetic energy at a given temperature?

Answers

Answer:

false

Explanation:

Difference in neutrons in a molecule means that molecules have different masses. They will always have different energies

another example: water has less energy as a liquid than as a gas

Hi hello I need help ASAP
Determine the slope of this line
a.2.5
b.0.75
c.1
d.0.4​

Answers

Answer:

so I got it wrong the first time but you should pick two points on the line such as 4,3 and 9,5. Then use the equation y^2 - y^1/ x^2 - X^1. You would get 2/5 which is D.

Explanation

Elements in a convolent bond are called ?

Answers

Answer:

A covalent bond is formed by an equal sharing of electrons from both the participating atoms. The pair of electrons participating in this type of bonding is called shared pair or bonding pair. The covalent bonds are also termed molecular bonds.

A 1500 N force gives an object an acceleration of 3 m/s2.

What is the mass of the object?

Answers

Answer:

500kg.

Explanation:

Newton's Second Law relates force, mass and acceleration to one another through the equation:

F = ma

We can rearrange this equation algebraically to solve for mass:

m = F/a

Substituting our known values for the variables, we get:

m = 1500N/3m/s2

So mass of the object is 500kg.

We know it's kg because Newtons (N) are a unit defined as 1 kg/m/s2, so m/s2 cancels out when we divide :)

Name two sources of cholesterol in the human body ​

Answers

Answer:

The cholesterol in your blood comes from two sources: the foods you eat and your liver. Your liver makes all the cholesterol your body needs.

Which date has the longest daylight and the shortest darkness

Answers

The Winter Solstice.

(8.6 1029) 7.4 X1029)

Answers

Answer:

65563.914234

Explanation:

8.61029 x 7.4 x 1029

63.716146 x 1029

multiply

= 65563.914234

How many moles are there 75.56 grams of KHCO3

Answers

Explanation:

mole = mass/molar mass

molar mass of KHCO3 = K + H + C + O3

39 + 1 + 12 + 3(16)

= 100g/mol

mass = 75.56

mole = 75.56/100

= 0.7556mol

Which is the Net Ionic Equation for:


(remember, the Net Ionic Eq. shows ALL of the PARTICIPANTS)


2FeCl3(aq) + 3Mg(s) ® 3MgCl2(aq) + 2Fe(s)






2Fe3+ (aq) + Cl3- (aq) + 3Mg(s) ® 3Mg3+ (aq) + Cl2- (aq) + 2Fe(s)





2Fe3+ (aq) + 6Cl- (aq) + 3Mg(s) ® 3Mg2+ (aq) + 6Cl- (aq) + 2Fe(s)

Answers

Answer: [tex]2Fe^{3+}(aq)+3Mg(s)\rightarrow 3Mg^{2+}(aq)+2Fe(s)[/tex]

Explanation:

Complete ionic equation : In complete ionic equation, all the substance that are strong electrolyte and are present in an aqueous state and represented in the form of ions.

Net ionic equation : In the net ionic equations, we do not not include the spectator ions in the equations.

Spectator ions : The ions present on reactant and product side which do not participate in a reactions. The same ions present on both the sides.

 The complete balanced ionic equation will be:

[tex]2Fe^{3+}(aq)+6Cl^-(aq)+3Mg(s)\rightarrow 3Mg^{2+}(aq)+6Cl^-(aq)+2Fe(s)[/tex]

 In this equation, [tex]Cl^-[/tex] are the spectator ions.

By removing the spectator ions from the balanced ionic equation, we get the net ionic equation.

The net ionic equation will be:

[tex]2Fe^{3+}(aq)+3Mg(s)\rightarrow 3Mg^{2+}(aq)+2Fe(s)[/tex]

When you watch a sunset, is the Sun really moving across the sky? What's happening?
(Science)

Answers

It is the earth spinning around its axis. It makes a complete turn every 24 hours. It turns toward the east

The diagram shows a pedigree for a recessive inherited trait. If H represents the dominant allele and h represents the recessive allele what are the genptypes of the parents shown in the pedigree.

Answers

Answer:

Hh

Explanation:

if you have a dominant allele and a recessive allele they'd be different (heterozygous)

If H represents the dominant allele and h represents the recessive allele, Hh is the genotypes of the parents shown in the pedigree.

What is genotypes?

The type of variation present at a specific locus (i.e., region) in the genome is scored by what is known as a genotype. Symbols can be used to symbolize it. For illustration, BB, Bb, and bb might be employed to denote a certain gene variant.

The actual DNA sequence, such as CC, CT, or TT, can also serve as a representation of a genotype. In a single experiment, the genotypes spanning millions of sites in a genome can be determined using DNA sequencing as well as other techniques. If H represents the dominant allele and h represents the recessive allele, Hh is the  genotypes of the parents shown in the pedigree.

Therefore,  Hh is the  genotypes of the parents shown in the pedigree.

To know more about genotypes, here:

https://brainly.com/question/16882362

#SPJ5

(Help would be greatly appreciated) Which sweet tea would you expect to taste the sweetest?
1. 1M
2. 3M
3. 3.1M
4. 2.5M

Answers

Answer:

3.1 M

Explanation:

3.1 M has the highest concentration of sweet tea so it should taste the sweetest.

Mix 200 g of copper at 100 °C with 1,000 g of water at 20 °C. Final temp. = 21.42°C a) How much heat energy (q) did the water gain? b) Now solve for the specific heat (c) of copper:

Answers

Answer:

a) [tex]Q_w=5941.3J[/tex]

b) [tex]C_{Cu}=0.378\frac{J}{g\°C}[/tex]

Explanation:

Hello there!

In this case, when a hot substance is mixed with a cold one, we can evidence how the hot one is able to heat up the cold one as it cools down. Thus, the net heat flow for this problem can be set up as shown below:

[tex]Q_{Cu}+Q_{w}=0[/tex]

Whereas the heats can be written in terms of mass, specific heat and temperatures:

[tex]m_{Cu}C_{Cu}(T_F-T_{Cu})+m_{w}C_{w}(T_F-T_{w})=0[/tex]

Thus, we proceed as follows:

a. Here we compute Qw:

[tex]Q_w=1,000g*4.184\frac{J}{g\°C}(21.42\°C-20\°C) \\\\Q_w=5941.3J[/tex]

b. Now, since this heat is equal to the negative of the heat contribution of copper (as it cools down), we can compute the specific heat of copper as shown down below:

[tex]C_{Cu}=\frac{-5941.3J}{200g(21.42\°C-100\°C)} \\\\C_{Cu}=0.378\frac{J}{g\°C}[/tex]

Best regards!

Al2(SO4)3 + 6 K --- > 3 K2SO4 + 2 Al


In an experiment, 46.8 grams of aluminum sulfate is reacted to make how many grams of potassium sulfate?

Answers

The answer is 71.5g of potassium sulfate


When you push or pull something, you are creating

Answers

force but could be tension

Plants and animals require large amounts of water in order to survive. Although vast numbers of plants and animals have lived throughout time, the amount of water in our environment has remained relatively constant. Which of the following statements explains why this occurs?


A. Water continually flows from the center of Earth.
B. Vast quantities of water are created by lightning in clouds.
C. Organisms return water to the environment after they use it.
D. Organisms combine hydrogen and oxygen to make their own water.
please help me

Answers

Answer: C - Organisms return water to the environment after they use it.

Explanation: The amount of water on earth will always remain the same. Water goes in and out of all organisms. It is not possible to be more or less.

Anyone help please more & you get extra points

Answers

Answer:

qns-4

1-multicellular organism

2-unicellular organism

3-unicellular organism

4-multicellular organism

5-unicellular organism

6-multicellular organism

7-unicellular organism

How many molecules are in 1 mole of molecules?

Answers

Avogadro's Number and the Mole. The mole is represented by Avogadro's number, which is 6.022×1023 atoms or molecules per mol.

Answer:

6.022x10^23

Explanation:

I need help boys-girls

Answers

Answer:

1.) B

2.) water

A cube of steel with a mass of 150 grams is heated from 60°C to 150°C.
Use calorimetry to determine the amount of energy absorbed by the
metal. The specific heat capacity of steel is 0.466 J/g°C.

Answers

Answer:

1.

The energy lost by the water is given by:

where

m = 3.0 kg = 3000 g is the mass of water

Cs = 4.179 J/g•°C is the specific heat

is the change in temperature

Substituting,

2.

The energy added to the aluminium is given by:

where

m = 0.30 kg = 300 g is the mass of aluminium

Cs = 0.900 J/g•°C is the specific heat

is the change in temperature

Substituting,

4. 42.9 g

The mass of the water sample is given by

where

is the heat added

is the temperature change

Cs = 4.179 J/g•°C is the specific heat

5. 115.5 J

The heat used to heat the copper is given by:

where

m = 5.0 g is the mass of copper

Cs = 0.385 J/g•°C is the specific heat

is the change in temperature

6. 0.185 J/g•°C

The specific heat of iron is given by:

where

Q = -47 J is the heat released by the iron

m = 10.0 g is the mass of iron

is the change in temperature

Substituting,

Substituting,

Substituting,

Explanation:

plz help fast! P.S. I put chemistry by accident its biology lol

The measure of water’s ability of flow through sediment and rock is called ​

Answers

Answer:

Permeability.

Explanation:

The ability of a rock or soil to allow water to flow through it is call permeability. Materials such as gravel that allow the flow of water are permeable. Materials such as clay or granite that do not allow the flow of water are impermeable.

Which hypothesis is directly tested in an experiment?

a. One specific confounding variable hypothesis.
b. All of the confounding variables hypotheses.
c. The research hypothesis.
d. both b and c

Answers

the answer is d because i took the test and got the right answer

An independent variable is
a.
directly changed by the experimenter.
b.
manipulated by changes to the dependent variable.
C.
a variable that is kept constant.
d.
a variable that is used as a control.

Answers

Answer:

a. directly changed by the experimenter.

Explanation:

In the case of mathematical modeling, analytical modeling , and experimental sciences, the number of dependent variables based upon the amount of independent variables.

The dependent variables represent the result or outcome whose changes is being determined.

An independent variable expressed in the name form like experimental or expected variable, is a variable i.e. created in an experiment in order to verify the effect on a dependent variable

Therefore the option a is correct

Can someone please help I need help?!?!

Answers

Answer:

a: 6 moles

b: 6.75 moles

c: 5 grams

Explanation:

a: mole ratio 2:3

b: mole ratio 2:3

c: mole ratio 2:2

If a metal that had reacted very
slowly with dilute acid was
tested with a concentrated
one, what would you predict
would happen?​

Answers

Answer:

It would react better than what with dilute and will furnish more hydrogen gas.

It would react faster due to the substances concentration percentage. The higher the concentration, the stronger it is, making it a quicker reaction with the metal.

Cart A has a mass of 24 kg and is being pulled with a force of 32 N. Cart B has a mass of
27 kg and is being pulled with a force of 33 N. Which cart will have the faster acceleration?

Answers

Cart b because it has greater force and higher mass

When a piece of copper metal at 100ºC was placed into a cup of water at 25ºC, the final temperature of both substances reached 30ºC within a minute. Which of the following statements is TRUE about the transfer of energy between the two substances?

A. Copper lost less energy than the amount of energy gained by water

B. Copper lost more energy than the amount of energy gained by water

C. Copper lost the same amount of energy that was gained by water

D. Copper gained the same amount of energy that was lost by water

Answers

Answer:

imma say C or D

Explanation:

I need help! Please & Thank you!

Answers

Answer:

I think it is B

Explanation:

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