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
Shkiper50 [21]
2 years ago
9

6th grade science i mark as brainliest​

Chemistry
2 answers:
kiruha [24]2 years ago
7 0

Answer:

it would be 5 i think

Explanation:

cuz 50 divided by 10 !

cluponka [151]2 years ago
4 0
Option b would be correct
You might be interested in
Which of the following is NOT a reason why index fossils are chosen for determining ages of rocks? Select all that apply.
Anarel [89]

Answer:

Lol

Explanation:

5 0
3 years ago
The Element rhenium has two naturally occurring isotopes, 185 Re and 187 Re, with an average atomic mass of 186.207 amu. Rhenium
BigorU [14]
To calculate the average mass of the element, we take the summation of the product of the isotope and the percent abundance. In this case, the equation becomes 186.207=187*0.626+185*x where x is the percent abundance of 185. The answer is 0.374 or 37.4%. This can also be obtained by 100%-62.6%= 37.4%. 
8 0
3 years ago
Construct a three-step synthesis of trans-2-pentene from acetylene by dragging the appropriate formulas into the bins. Note that
adelina 88 [10]

Answer:

The three-step synthesis of trans-2-pentene from acetylene is as follows.

<u>Step -1:</u> Formation of higher order terminal alkyne on reaction with sodium acetylides with haloalkanes.

<u>Step -2:</u> Formation terminal alkyne to nonterminal alkynes.

<u>Step -3:</u> Formation of trans-pent - 2-pent-ene by reduction.

Explanation:

Synthesis of trans-pent-2-yne from ethyne takes place is mainly a three step synthesis which involves formation of higher order terminal alkyne on reaction with sodium acetylides with haloalkane. Second step involves the further alkylation of terminal alkynes to higher order nonterminal alkynes and the third step involves the formation of trans-2-ene by dissolving reduction method.

The chemical reaction of each step of chemical reactions is as follows.

8 0
3 years ago
What most likely happens when water loses heat?
astraxan [27]
If water loses heat then it will become cold and as the water becomes cold it starts forming these little bubbles around the glass. If you want extra information search up *Why are there bubbles in my water?* and it will give you the information right on the page if you're using a Google browser! Hint Hint! it has to do with nitrogen! 

~Pinkachumoo 

Which you the best! 
5 0
3 years ago
Which veriable should he change, measure and control (temp of water, volume of water and mass of sodium chloride that dissolve )
erma4kov [3.2K]
I would say
change: Temp
Measure: Mass
Control: Volume
7 0
3 years ago
Other questions:
  • A. Use average bond energies together with the standard enthalpy of formation of C(g) (718.4 kJ/mol ) to estimate the standard e
    11·1 answer
  • The heat of vaporization of water is 40.66 kj/mol. how much heat is absorbed when 2.46 g of water boils at atmospheric pressure?
    7·2 answers
  • Chromium (Cr) can combine with Chlorine (Cl2) to form Chromium chloride (CrCl3). Which equation is a correction representation o
    5·2 answers
  • Hexylresorcinol, an antiseptic ingredient used in mouthwashes and throat lozenges, has the IUPAC name of 4-hexylbenzene-1,3-diol
    13·1 answer
  • Intain their own homeostasis?​
    6·1 answer
  • Which equation should you use to find the final<br> concentration?
    6·1 answer
  • What is the name of MnO? Explain how you determined the bond type and the steps you used to determine the naming convention for
    7·1 answer
  • Examination reveals that 180.2 g/mol of glucose contains 72.1 grams of carbon, 96 g/mol of oxygen and the remainder is hydrogen.
    11·1 answer
  • Tính nộng độ mol/l của các chất tan trong các dung dịch sau: a) Trong 100ml dung dịch (A) có chứa 0,0365g HCl. (Cho: H=1; Cl=35,
    11·1 answer
  • Add a constant temperature when the volume of the gas is decreased what happens to its pressure
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!