1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ddd [48]
3 years ago
10

How many miles of lead are equal to 9.51 x 10^3 g Pb?

Chemistry
1 answer:
Lemur [1.5K]3 years ago
7 0
Molar mass Pb = 207.2 g/mol

1 mole Pb ------------- 207.2
? mole Pb ------------ 9.51 x 10³

moles = 9.51 x 10³ * 1 / 207.2

moles = 9.51 x 10³ / 207.2

= 45.89 moles

hope this helps!

You might be interested in
Selenium has six valence electrons. what is the valence of selenium
gulaghasi [49]
He valence of selenium depends on which compound it is in. Selenium is very similar to sulfur. It may have a valence of 6; example selenium hexafluoride SeF6, selenium trioxide SeO3 
<span>4; example selenium tetrafluoride SeF4, selenium dioxide SeO2 </span>
<span>2; example selenium difluoride SeF2, selenium dichloride SeCl2 </span>
<span>and -2; example hydrogen selenide H2Se</span>
8 0
4 years ago
predict an element that would react with water as lithium (Li), sodium (Na), and potassium (K) did. explain.
Alexeev081 [22]
Any of the other alkali metals not mentioned (I.e. rubidium, caesium or francium). They are all group one metals meaning that they contain one valence (outer shell) electron so they will have similar properties. Francium is the most reactive alkali metal while lithium is the least reactive (if you’d like me to explain that let me know :) )
5 0
3 years ago
What property of radioactive nuclear waste makes it so difficult to dispose responsibility?
mash [69]
<span>Radioactive waste, as its name implies, is a source of radiation that can be harmful to living organisms. Therefore it needs to be disposed of very carefully in such a way that the radiation cannot reach human beings and other living organisms. One method to do this is to bury the waste in deep pits. </span>
7 0
4 years ago
HELP!!!!!!!!! 40 pointsss
stiv31 [10]
<h3>Answer:</h3>

Too many caterpillars 1) Plants would become scarce and rabbits would die out from starvation.

Hawks and snakes are scarce  2) Rabbit and bird populations would grow, making plants and caterpillars scarce.

Too many rabbits  3) Plants would become scarce and caterpillars would die out from starvation.

Sunlight is scarce  4) Plants would not grow, which would starve caterpillars and rabbits, which would then starve the other animals.

Too many snakes 5) Rabbit and birds become scarce.

Birds are scarce 6) Snakes would only eat rabbits, making rabbits scarce.

<h3>Explanation:</h3>

Too many caterpillars  1) Plants would become scarce and rabbits would die out from starvation.

Plants are the sole food source of both caterpillars and rabbits. Therefore, they are both competing for the same source of food. If there are too many caterpillars, then they will eat more of the plants. This would mean the plants are scarce. As a result, the rabbits now have less food and would die from starvation.

Hawks and snakes are scarce  2) Rabbit and bird populations would grow, making plants and caterpillars scarce.

Hawks and snakes are the two top predators in this food web. They both eat rabbits and birds. If their numbers declined, it would mean there would be no predators that eat rabbits and birds. As a result, the numbers of rabbits and birds would increase. This would have a knock on effect to both plants and caterpillar. Rabbits eat plants, and birds eat caterpillar. If there are more rabbits and birds, then they eat more plants and caterpillar, reducing their numbers and making them scarce.

Too many rabbits  3) Plants would become scarce and caterpillars would die out from starvation.

Rabbits rely on plants as their only food source. Caterpillars also rely on plants as their only food source. If there were too many rabbits, they would eat a lot of plants until the point they became scarce. Since caterpillars also rely on plants as their only food source, they would die of starvation.

Sunlight is scarce : 4) Plants would not grow, which would starve caterpillars and rabbits, which would then starve the other animals.

Plants rely on sunlight to make their own food by photosynthesis. If there is no sunlight, the plants cannot efficiently make food to grow and reproduce. Therefore, plants would become scarce. Plants are the food source of both rabbits and caterpillars. Therefore, if there were a limited number of plants, rabbits and caterpillars would not have sufficient food, and would die of starvation. Rabbits and caterpillars are the food source of birds,  snakes, and hawks, so these animals would also be affected.

Too many snakes: 5) Rabbit and birds become scarce.

Snakes are a top predator that eat rabbits and birds. If there are too many snakes, then they will need to eat more rabbits and birds to attain a sufficient food supply. Therefore, if there are lots of snakes, the numbers of rabbits and birds will reduce and eventually become scarce.

Birds are scarce: 6) Snakes would only eat rabbits, making rabbits scarce

Snakes have two food sources in this web: rabbits and birds. If birds became reduced in numbers, then snakes would only have one food source, rabbits. This would mean that rabbits would be eaten much more by snakes, as this is is their only food source. As a result, rabbit numbers would decline and become scarce.

8 0
3 years ago
If you have an aqueous solution that contains 1.5 moles of hcl, how many moles of ions are in the solution? (a) 1.0, (b) 1.5, (c
Darya [45]

If you have an aqueous solution that contains 1.5 moles of HCl, the number of moles of ions in the solution is 3.0 moles.

<h2>Further Explanation </h2><h3>Strong acids  </h3>
  • Strong acids are types of acids that undergo complete dissociation to form ions when dissolved in water.
  • Examples of such acids are, HCl, H2SO4 and HNO3
  • Dissociation of HCl

HCl + H₂O ⇔ H₃O⁺ + OH⁻

<h3>Weak acids  </h3>
  • Weak acids are types of acids that undergo incomplete dissociation to form ions when dissolved in water.
  • Examples of such acids are acetic acids and formic acids.
  • Dissociation of  acetic acid

H₃COOH ⇔ CH₃COO⁻ + H⁺; CH₃COO⁻ is a conjugate base of acetic acid.

<h3>In this case;</h3>
  • HCl which is a strong acid that ionizes completely according to the equation;

HCl + H₂O ⇔ H₃O⁺ + OH⁻

  • From the equation, 1 mole of HCl produces 1 mole of H₃O⁺ ions and 1 mole of OH⁻ ions.

Therefore;

1.5 moles of HCl will produce;

= 1.5 moles of H₃O⁺ ions and 1.5 moles of OH⁻ ions.

This gives a total number ions of;

= 1.5 + 1.5

= 3 moles of ions

Keywords:  Strong acid, weak acid, ions, ionization

<h3>Learn more about: </h3>
  • Strong acid: brainly.com/question/3239966
  • Weak acid; brainly.com/question/3239966
  • Ionization of acids and bases: brainly.com/question/11844503

Level: High school

Subject: Chemistry

Topic: Salts, Acids and Bases

6 0
3 years ago
Read 2 more answers
Other questions:
  • explain what happens when anhydrous calcium chloride are exposed to the atmosphere for about two days​
    14·1 answer
  • This is 10 points a pic
    13·2 answers
  • Diamond has a density of 3.26 g/cm3. What is the mass of a diamond that has a volume of 0.276 cm3?
    12·1 answer
  • What does FE stand for in the Periodic Table of Elements?
    8·2 answers
  • To determine the formula mass of a compound you should?
    15·1 answer
  • What is the coefficient of the acid that produces AlCl3 in the reaction mixing Al(OH)3 and HCl after the equation has been balan
    15·1 answer
  • A. On the Periodic Table of Elements, columns are called ______________________; all of these
    8·2 answers
  • How many joules of heat are lost when 150.0 g of steam are cooled from 124. C to 86 C?
    14·1 answer
  • A compound is made of 36.36% C, 7.13% H, 56.51% O. What is its empirical formula?
    10·1 answer
  • A 2.0 M solution of LiF had 4.00 moles of LiF added to a solvent to make it.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!