What is the toto number of neutrons in an atom of 73 li

Answers

Answer 1
Answer: The 73 in Li means that there are 73 protons and neutrons in this atom. To find the number of neutrons, simply subtract the number of protons, which is equal to the atomic number (which is 3 in this case).

70 neutrons.

Related Questions

A 51.9g sample of iron, which has a specific heat capacity of 0.449·J·g?1°C?1, is put into a calorimeter (see sketch at right) that contains 300.0g of water. The temperature of the water starts off at 19.0°C. When the temperature of the water stops changing it's 20.3°C. The pressure remains constant at 1atm. Calculate the initial temperature of the iron sample. Be sure your answer is rounded to 2 significant digits.
Which is not a product of the fractional distillation of petroleum?A) GasolineB) Jet FuelC) steel
Which particle is negatively charged?A. protonB. atomC. neutronD. electron
Which enzymes show very broad substrate specificity and can therefore be used to produce several higher alcohols.Select one:a. 2-keto acid decarboxylase AND alcohol dehydrogenase b. alcohol dehydrogenasec. transaminased. acetolactate synthasee. 2-ketoacid decarboxylase
15) What is the hydronium ion concentration [H3O + ] of a 0.125 M hydrocyanic acid solution with Ka = 4.9 × 10-10? The equation for the dissociation of hydrocyanic acid is: HCN(aq) + H2O(l) ⇌ H3O+(aq) + CN- (aq)

What is the mass of silver that can be prepared from 1.50 g of copper metal? Cu(s)+2AgNO3(aq)→Cu(NO3)2(aq)+2Ag(s)

Answers

The mass of silver that can be prepared from 1.50 g of copper metal is 5.10 g.

To find the mass of silver that can be prepared from 1.50 g of copper metal, we need to use stoichiometry and the balanced chemical equation.

From the equation, we can see that 1 mole of copper reacts with 2 moles of silver to produce 1 mole of copper(II) nitrate and 2 moles of silver.

We can use the molar masses of copper and silver to convert grams to moles, and then use the mole ratio to find the moles of silver. Finally, we can convert moles of silver back to grams using the molar mass of silver.

Step 1: Convert grams of copper to moles of copper. (1.50 g Cu) / (63.55 g/mol Cu) = 0.0236 mol Cu

Step 2: Use the mole ratio of silver to copper from the chemical equation. (0.0236 mol Cu) × (2 mol Ag / 1 mol Cu) = 0.0473 mol Ag

Step 3: Convert moles of silver to grams of silver. (0.0473 mol Ag) × (107.87 g/mol Ag) = 5.10 g Ag

Molar mass:

Ag = 107.86 g/mol
Cu = 63.54 g/mol

Mole ratio:

Cu(s)+2 AgNO₃(aq)→Cu(NO₃)₂(aq)+2 Ag(s)

63.54 g Cu ------------- 2 x 107.86 g Ag
1.50 g Cu -------------- ??

Mass Ag = 1.50 x 2 x 107.86 / 63.54

Mass Ag = 32358 / 63.54

= 509.25 g of Ag

hope this helps!

What substance is produced by the reaction: H+[aq]+OH-[aq]=?

Answers

Answer:

It produces water.

Explanation:

H+   +    OH-    produces    H2O.

It is a type of Neutralization reaction.

At this location, it is summer in the Northern Hemisphere because the North Pole is tiltedAway from the sun

Towards the sun

Answers

Answer:

This happens twice a year during Earth's orbit. Near June 21 the north pole is tilted 23.5 degrees toward our Sun and the northern hemisphere experiences summer solstice, the longest day of the northern hemisphere year.

...

Do other planets have seasons?

Uranus

30,589

97.8

Spring Equinox* 2050

Summer Solstice*

points toward the sun.

closer the earth is to the sun the more  hot it will be the closer it is to summer,

you can see at D northern hemisphere is closest to sun and the north pole is pointing toward the sun.

Explain what the police siren sounds like to Jane. Explain what the police siren sounds like to John. Explain why the police siren sounds different between Jane and John.

Answers

Like siren They all sound the same
its moving toward jane and away from john. it sounds different because of the wave sound

Lewisite (2-chloroethenyldichloroarsine) was once manufactured as a chemical weapon, acting as a lung irritant and a blistering agent. During World War II, British biochemists developed an antidote which came to be known as British anti-Lewisite (BAL) (2,3-disulfanylpropan-1-ol). Today, BAL is used medically to treat toxic metal poisoning. Complete the reaction between Lewisite and BAL by giving the structure of the organic product and indicating the coefficient for the number of moles of HCl produced in the reaction.

Answers

Answer:

2 HCl

Explanation:

Please kindly check attachment for the step by step solution of the given problem.

Increasing which factor will cause the gravitational force between two objects to decrease?weights of the objects
distance between the objects
acceleration of the objects
masses of the objects

Answers

Increasing distance between the objects factor will cause the gravitational force between two objects to decrease. Therefore, option B is correct.

What causes gravitational force to decrease?

The gravitational force grows in proportion to the size of the masses . The gravitational force weakens rapidly as the distance between masses grows. Unless at least one of the objects has a lot of mass, detecting gravitational force is extremely difficult.

Gravity is affected by object size and distance between objects. Mass is a unit of measurement for the amount of matter in an object.

The force of gravity is proportional to the masses of the two objects and inversely proportional to the square of the distance between them. This means that the force of gravity increases with mass but decreases as the distance between objects increases.

Thus, option B is correct.

To learn more about the gravitational force, follow the link;

brainly.com/question/12528243

#SPJ6

Answer:

B

Explanation: