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
solmaris [256]
3 years ago
12

If a neutral atom of boron (B) contains 5 protons, 5 electrons and 6 neutrons, what is the mass number of this atom? (2 points)

Chemistry
2 answers:
viktelen [127]3 years ago
7 0
The atomic mass it 11. 5 Proton and 6 Neutrons is 11 mass. Protons and Neutrons both weigh 1U.
Shkiper50 [21]3 years ago
6 0
I believe the answer is 11, its been awhile since i was in science
You might be interested in
In which reaction is there a transformation of mass into energy? For A P E X
Alik [6]
This is called
Nuclear fusion
Example is two hydrogen atoms fuse to form a helium atom
Where some of the atoms of hydrogen turn in to energy
So the answer is A
5 0
3 years ago
Read 2 more answers
What is the pOH of a solution with [OH-] = 1.4 x 10-13?
lukranit [14]

Answer:

C. 12.85

Explanation:

just did

4 0
3 years ago
The danger from radon gas would most likely be greatest in:.
Semmy [17]

The danger from radon gas would most likely be greatest in well-insulated homes. It is a toxic gas.

<h3>What is radon gas?</h3>

Radon is a naturally radioactive gas generated from different elements such as uranium or radium.

Radon is generated when these radioactive materials naturally decompose in the soils and/or rocks.

Radon is highly toxic and therefore this gas must be avoided to maintain healthy conditions in a home.

Learn more about the radon gas here:

brainly.com/question/1121893

5 0
2 years ago
25 POINTS
Rudiy27

EASY AS PIE AND I LIKE PIE

Calcium iodide (CaI2) is an ionic bond, which means that electrons are transferred.  In order for Ca to become the ion Ca2+, the calcium atom must lose 2 electrons. (Electrons have a negative charge, so when an atom loses 2 electrons, its ion becomes more positive.)  In order for I to become the ion I1−, the iodine atom must gain 1 electron. (When an atom gains an electron, its ion will be more negative.)  However, the formula for calcium iodide is CaI2 - there are 2 iodine ions present. This makes sense because the iodine ion has a charge of -1, so two iodine ions have to be present to cancel out the +2 charge of the calcium ion.  Therefore, the calcium atom transfers 2 valence electrons, one to each iodine atom, to form the ionic bond.

IF WRONG, SORRY

8 0
3 years ago
Read 2 more answers
A sample of helium gas initially at 37.0°C, 785 torr and 2.00 L was heated to 58.0°C while the volume expanded to 3.24 L. What i
spayn [35]

Answer:

0.681 atm

Explanation:

To solve this problem, we make use of the General gas equation.

Given:

P1 = 785 torr

V1 = 2L

T1 = 37= 37 + 273.15 = 310.15K

P2 = ?

V2 = 3.24L

T2 = 58 = 58+273.15 = 331.15K

P1V1/T1 = P2V2/T2

Now, making P2 the subject of the formula,

P2 = P1V1T2/T1V2

P2 = [785 * 2 * 331.15]/[310.15 * 3.24]

P2 = 515.715 Torr

We convert this to atm: 1 torr = 0.00132 atm

515.715 Torr = 515.715 * 0.00132 = 0.681 atm

8 0
3 years ago
Other questions:
  • A medical lab is testing a new anticancer drug on cancer cells. The drug stock solution concentration is 1.5×10−9m, and 1.00 ml
    9·2 answers
  • What is the formula for copper(ii) phosphate? capitalization and punctuation count!?
    12·1 answer
  • The common laboratory solvent chloroform is often used to purify substances dissolved in it. The vapor pressure of chloroform ,
    9·2 answers
  • Concentrated hydrochloric acid is an aqueous solution that is 34.70 % HCl. The density of the solution is 1.19 g/mL. What mass o
    6·1 answer
  • The primary mechanism for converting atmospheric carbon into usable forms for life on earth is achieved by
    12·2 answers
  • What is the name of this molecule?
    13·2 answers
  • Used oil needs to be kept in what kind of containers
    9·1 answer
  • SEP Analyze Data Look at the phase diagram. What is the state of matter for methanol at a temperature of −0.1°C and a pressure o
    10·1 answer
  • Hey please answer this thanks.
    12·1 answer
  • Am i correct?????????????????????????????
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!