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
luda_lava [24]
3 years ago
13

Whats the atomic mass

Chemistry
1 answer:
Semmy [17]3 years ago
8 0
The mass of a chemical substance is known as the atomic number or atomic mass
You might be interested in
An aluminum block has a density of 2.70 g/mL. If the mass of the block is 24.60 g, find the volume of the substance.
harina [27]

Volume of a substance can be determined by dividing mass of the substance by its density.

That can be mathematical shown as:

Density=Mass/Volume

So, Volume=Mass/Density

Here mass of the substance given as 24.60 g

Whereas density of the substance is 2.70 g/mL

So,

Volume=Mass/Density

=24.6/2.7

=9.1 mL

So volume of the substance is 9.1 mL.

8 0
3 years ago
3. Given the reaction:
sesenic [268]

Answer:

Attached

Explanation:

3 0
2 years ago
What is the boiling point of water at an elevation of 1.55×104 ft ?
horsena [70]
The computation for this problem is:
(1.55x10^4 / 1.0x10^3) x 19.8 mm Hg
= 15.5 x 19.88 mm Hg
= 308.14 mm Hg decrease 
= 308.14 x 0.05 C = 15.407 deg C 
deduct this amount to 100
100 – 15.407 = 84.593 C 
ANSWER: 85 deg C (rounded to 2 significant figures)
4 0
3 years ago
Why does platinum metal make a good catalytic surface for reactant molecules?
d1i1m1o1n [39]

Answer:

it holds reactant molecules in a good position for then to react

3 0
3 years ago
When 1 mol of KBr(s) decomposes to its elements, 394 kJ of heat is absorbed. (a) Write a balanced thermochemical equation.
VladimirAG [237]

The balanced thermochemical equation is

KBr ------- K + 1/2 Br2

<h3>What is thermochemical equation? </h3>

A Thermochemical Equation is defined as the balanced stoichiometric chemical equation which includes the enthalpy change, ΔH.

The chemical equation for the decomposition of potassium bromide to its constituent elements bromine ans potassium :

KBr ----- K + Br2

The balanced thermochemical equation of the decomposition of potassium bromide to its constituent elements potassium and bromide as follows

KBr ------- K + 1/2 Br2

As the heat is absorbed in this reaction therefore, heat is positive.

Thus, we concluded that the balanced thermochemical equation is

KBr ------- K + 1/2 Br2

learn more about thermochemical equation:

brainly.com/question/2733624

#SPJ4

8 0
1 year ago
Other questions:
  • I NEED HELP PLEASE WITH THESE QUESTIONS :
    14·2 answers
  • How many atoms of fluorine are present in a molecule of carbon tetrafluoride CF4
    10·1 answer
  • Which Step In the nitrogen cycle is accelerated at the beginning of the eutrophication process
    13·1 answer
  • Which of the following states of matter occurs at the highest temperature?
    9·2 answers
  • A bird is able to easily soar when it flies over a thermal. A thermal is a current of warm air that is heated by the ground and
    12·1 answer
  • Constituent elements of bronze
    13·1 answer
  • T/F according to the law of conservation of energy, when you use energy
    8·1 answer
  • I need help pls Where does it belong to?​
    11·1 answer
  • the figure shows particles of a substance in a closed container. Which state of matter is shown in the figure?
    7·1 answer
  • The town of Eatonville has decided to replace all of the incandescent light bulbs in their public buildings with more energy-eff
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!