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
Marrrta [24]
3 years ago
11

What is the atomic number of an atom?

Chemistry
2 answers:
Darya [45]3 years ago
7 0
Answer: C) number of protons
4vir4ik [10]3 years ago
7 0

Answer:

the number of protons

Explanation:

i took the the test

You might be interested in
What would most accurately measure the volume of water or other liquid?
Afina-wow [57]

Answer:

D. Graduated Cylinder

Explanation:

7 0
2 years ago
Ca(s) + O₂(g) + S(s) → CaSO4(s)
san4es73 [151]

The mass of Calcium required to complete this reaction is 4.008 g.

  • Law of conservation of mass states that In a closed system, mass cannot be produced or destroyed, but it can be changed from one form to another.
  • The mass of the chemical constituents before a chemical reaction is equal to the mass of the constituents after the reaction.
  • In several disciplines, including chemistry, mechanics, and fluid dynamics, the idea of mass conservation is widely applied.

In the given reaction mass of product after completion of reaction is 13.614 g that means total mass of constituents before reaction should also be 13.614.

So,

mass of Ca + mass of O₂ + mass of S = mass of CaSO4

Ca + 6.400 g + 3.206 g = 13.614 g

mass of Ca = 13.614 - 9.606 = 4.008 g

Therefore, by law of conservation of mass 4.008 g of Ca is required for the completion of the reaction.

Learn more about mass conservation here:

brainly.com/question/2030891

#SPJ9

5 0
1 year ago
A mixture of three gases has a total pressure of 365 mmHg. Gas A contributes a pressure of 53 mmHg and gas B contributes a press
adoni [48]
This one is the easiest law, but you would take 53 and 185 and add them together to get 235 and then you will minus 235 and 365 and the answer you are looking for is 130 mmHg! Hopefully this helped you!!

5 0
2 years ago
Assessment timer and count
Aneli [31]

Answer:

I think it's the last one.

Explanation:

Because gravity is what makes our planets stay still and stops our planets from dropping and as they orbit around the sun that's what keeps the moon from bumping into earth. I hope this helps and makes sense.

<h3>p.s. can I pls be ur brainliest answer, I'd appreciate it </h3>
3 0
3 years ago
-1
Phantasy [73]
Carbonation isn’t a force that causes such
7 0
3 years ago
Other questions:
  • A student is asked to standardize a solution of potassium hydroxide. He weighs out 1.08 g potassium hydrogen phthalate (KHC8H4O4
    8·1 answer
  • Which expression is equivalent to 6m + (m - 2)(m + 7) + 3?
    15·1 answer
  • The density of aluminum is 2.7 g.ml. what is the volume of 16.2 grams? HELP
    12·1 answer
  • A gas has a boiling point of 175 celsius. At what kelvin temperature would this gas boil
    6·1 answer
  • How many pairs of electrons are shared by adjacent carbon atoms in an alkane?
    5·2 answers
  • Anyone please help I’m in summer school please
    13·1 answer
  • What is an accurate description of a period in the periodic table
    9·2 answers
  • MARKING BRAINLIEST
    6·1 answer
  • What type of reaction occurs in a hand warmer?<br> Exothermic<br> Endothermic
    5·1 answer
  • water dissolves salts because it: select one: a. is hydrophobic, and salts are also hydrophobic. b. forms covalent bonds with th
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!