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
Oksanka [162]
2 years ago
14

The atomic mass of an element is measured relative to the mass of *

Chemistry
2 answers:
Neko [114]2 years ago
4 0

Answer:

the number of atoms of the elements contained in 12.00g of carbon-12

Bad White [126]2 years ago
3 0

Answer:

carbon-12. I'm pretty sure

You might be interested in
A 20.0-ml sample of glucose Iv solution has a mass of 20.6g.what is the density of the glucose​
xxTIMURxx [149]

Taking into account the definition of density, the density of the glucose is 1.03 \frac{g}{mL}.

<h3>What is density</h3>

Density is defined as the property that matter, whether solid, liquid or gas, has to compress into a given space.

In other words, density is a quantity that allows us to measure the amount of mass in a certain volume of a substance. Then, the expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:

density=\frac{mass}{volume}

From this expression it can be deduced that density is inversely proportional to volume: the smaller the volume occupied by a given mass, the higher the density.

<h3>Density of the glucose</h3>

In this case, you know that:

  • Density= ?
  • Mass= 20.6 g
  • Volume= 20 mL

Replacing in the definition of density:

density=\frac{20.6 g}{20 mL}

Solving:

<u><em>density= 1.03 </em></u>\frac{g}{mL}

In summary, the density of the glucose is 1.03 \frac{g}{mL}.

Learn more about density:

brainly.com/question/952755

brainly.com/question/1462554

#SPJ1

4 0
2 years ago
Given the reaction: Ca + 2H2O → Ca(OH)2 + H2 What is the total number of moles of Ca needed to react completely with 4.0 moles o
DiKsa [7]

<u>Answer:</u> The number of moles of calcium metal required is 2.0 moles.

<u>Explanation:</u>

We are given:

Moles of water reacted = 4.0 moles

The given chemical reaction follows:

Ca+2H_2O\rightarrow Ca(OH)_2+H_2

By Stoichiometry of the reaction:

2 moles of water is reacted with 1 mole of calcium metal

So, 4.0 moles of water will react with = \frac{1}{2}\times 4.0=2.0mol of calcium metal

Hence, the number of moles of calcium metal required is 2.0 moles.

6 0
3 years ago
Read 2 more answers
Calculate the molar mass of ammonium chloride
il63 [147K]

Answer:

53.491 g/mol

Explanation:

Create the chemical compound and find each individual element's molar mass. Lastly, add them up.

3 0
2 years ago
Which best explains how heat plays a role in the movement of materials within Earth's interior?
Tema [17]

Answer:

Hot material near Earth's surface is more dense and sinks, and when it cools, it becomes less dense and rises.

Explanation:

Convection is a process by which less dense material rises and more dense material sinks near Earth's surface. Water, air, rocks and other materials expands when temperature rises and they become less dense. When the water is heated it becomes vapors and carries away thermal energy from the water.

6 0
3 years ago
Read 2 more answers
3. What do the most abundant elements in Earth's atmosphere have in common?​
Advocard [28]

Answer:

They all have: nitrogen :780,900 755,100

oxygen: 209,500 231,500

argon 9,300 12,800

carbon dioxide

386 591

8 0
3 years ago
Other questions:
  • Is (NH4)2 a ionic compound
    8·1 answer
  • What is the makeup of lemon juice
    11·1 answer
  • Is there any place on Earth that does not have seasons?
    6·2 answers
  • Identify the type of atom that generally forms covalent bonds
    7·1 answer
  • The following graph compares the greenhouse gas emissions from different forms of electricity production.
    11·2 answers
  • Using balanced chemical equations, explain the observed conductivity at the point of faint pink indicator color for:
    15·1 answer
  • The image on the left shows a normal red blood cell, and the image on the right shows a cell that has been put into a new soluti
    6·2 answers
  • What is the enthalpy change from h2o liquid to h2o gas
    14·1 answer
  • Which quantity could best be measured with a meter stick?
    12·1 answer
  • How should you remove a beaker from a hot plate after heating it?.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!