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
SIZIF [17.4K]
2 years ago
12

In a chemical reaction, mass is conserved. This means that

Chemistry
1 answer:
guajiro [1.7K]2 years ago
3 0
D. the mass and number of atoms and the elements will always and must be equal on both sides of the equation, mass can not be destroyed, only conserved
You might be interested in
If you have 10,000 grams of a substance that decays with a half-life of 14 days, then how much will you have after 56 days?
Crank

Answer: 625 grams

Explanation:

14 goes into 56, 4 times.

10,000÷2=5,000 - first half life

5,000÷2=2,500 - second half life

2,500÷2=1,250 - 3rd half life

1,250÷2= 625 - 4th half life

Note: don't type "grams" after 625, just type "625".

5 0
2 years ago
The bond that join the 3'-hydroxyl group of the deoxypentose of one nucleotide to the 5'-hydroxyl group of the deoxypentose of a
lara [203]

Answer:

phosphodiester bond

Explanation:

<em>Phosphodiester linkage/bond is found in deoxyribonucleic and ribonucleic acids. It is formed from a reaction involving the elimination of water from a reaction involving the hydroxyl groups of two different 5-carbon (pentose) sugars and a phosphate group.</em>

The elimination of water, also known as condensation reaction occur twice, resulting in the formation of two ester bonds which then bind the phosphate group to the pentose sugars to become a phosphodiester bond.

The bond links the 3'-hydroxyl group of one of the pentose sugars and the 5'-hydroxyl group of the other pentose sugar in the nucleotides that make up nucleic acids.

8 0
3 years ago
Round off or add zeros to the following calculated answers to give a final answer with three significant figures
sesenic [268]
In this case, 58.703 has five significant figures because the 3 at the end is significant and therefore makes the 0 significant as well. Since there are 5 significant figures, we need to round off the 7 to get 58.7, which has three significant figures.

Hope this helps.
8 0
3 years ago
I've been stuck on this assignment for 3 weeks now, help please.<br>-Pics included-
Bond [772]
1. 2NaN3 —> 2Na + 3N2
2. 2Pb + 2H2O + O2 —> 2Pb(OH)2
3. 2C4H12 + 13O2 —> 8CO2 + 10H2O
4. 4Fe + 3Sn(NO3)4 —> 4Fe(NO3)3 + 3Sn
5. Fe(NO3)3 + 3NaOH —> Fe(OH)3 + 3NaNO3

Balancing equations depends on the atom numbers you start with.

If you are having trouble you can look up ‘chemical equation balancer’ and type in the starting elements and simply replace the arrow with an = equal sign and then enter the reactants. It will show you the balanced equation
But please— make sure you actually understand the process of balancing because it’s important for future chem classes
3 0
2 years ago
the periodic table created by Dmitri Mendeleev is very useful to that contain a large amount of information about an atom of a p
alexgriva [62]
Egyptians are running through mexico
8 0
3 years ago
Other questions:
  • 4. Refer the table given below to answer the questions fon Electronic configuration Element Atomic number 11 R 19 2,8,1 2,8,8, 1
    15·1 answer
  • A molecule of alkene has the chemical formula C3H4. How many carbon-carbon double bonds are present in the molecule?Choices:123
    13·1 answer
  • What do these two changes have in common
    14·2 answers
  • Student follow up
    8·1 answer
  • 1. Al+3 has how many neutrons?<br><br>2. thorium-230 has how many protons, neutrons and electrons?
    13·1 answer
  • How many moles are there in 3.612 x 1024 atoms of Sulfur?
    8·1 answer
  • I need help fast answering these questions plzzz!! NO LINKS
    11·1 answer
  • Which statement is true for photosynthesis
    14·1 answer
  • Which of these solution is most basic
    11·2 answers
  • Razak uses 70 W fan and a 40 w lamp for eight hours a day, Calculate the amount of energy he used in a month. NORS Analysing​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!