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]
2 years ago
15

PLEASE HELP!!!!!!!!!!!!!

Chemistry
1 answer:
kogti [31]2 years ago
6 0
Ccccccccccccccccc ccccccccccc.
You might be interested in
Which of the following is NOT a clue that a chemical change has occurred? * 1 point Sugar turns blackish-brown as it is heated.
Vladimir [108]

Answer:

The answer is Steam is produced when water is heated. The color does not change, a precipice is not formed, and the odor does not change!

5 0
3 years ago
The hydrogens and oxygen of a water molecule are held together by ______ bonds.
umka2103 [35]
The hydrogens and oxygen of a water molecule are held together by covalent bond
6 0
3 years ago
Read 2 more answers
What will the charge oxidiation state be for boron
artcher [175]

3+

So, compounds of boron contain boron in a positive oxidation state, generally +3. The sum of oxidation numbers of all constituent atoms of a given molecule or ion is equal to zero or the charge of the ion, respectively. ... In most of the stable compounds of boron, its oxidation number is +3

7 0
3 years ago
Thallium has two stable isotopes, 203tl and 205tl. knowing that the atomic weight of thallium is 204.4, which isotope is the mor
Elza [17]
You have to figure out a way to write the two unknown abundances in terms of one variable.

The total abundance is 1 (or 100%). So if you say the abundance for the first one is X then the abundance for the second one has to be 1-X (where X is the decimal of the percentage so say 0.8 for 80%).

203(X) + 205(1-X) = 204.4

Then you just solve for X to get the percentage for TI-203.
And then solve for 1-X to get the percentage for TI-205.

After that the higher percentage would be the most abundant.

203x + 205 - 205x = 204.4
-2x + 205 = 204.4
-2x = -0.6

x = 0.3
1-x = 0.7

Then the TI-205 would have the highest percentage and would be the most abundant.
7 0
2 years ago
What is the mass of butane gas, C4H10, that can be held in a 3.00 L container at STP?
Lady bird [3.3K]

Answer:

3/22.4

Explanation:

8 0
2 years ago
Other questions:
  • How are the empirical and molecular formulas for a compound related?
    9·2 answers
  • The compound most likely to be ionic is: carbon tetrachloride, potassium fluoride, carbon dioxide, or iodine monochloride?
    8·1 answer
  • Which of the following is not an effect of acid rain?
    8·2 answers
  • Which planet contains high levels of carbon dioxide in its atmosphere resulting in a runaway greenhouse effect
    10·1 answer
  • What is the nature of the Ca-Cl bond in a molecule of calcium chloride (CaCl2) if the electronegativity value of calcium is 1.0
    5·1 answer
  • Water was added to 175 mL of a KOH solution until the volume was 250 mL and the molarity was 0.315 M. What was the molarity of t
    14·1 answer
  • At what temperature will 0.654 moles of helium gas occupy 12.30 liters at 1.95 atmospheres?
    11·1 answer
  • Which is the best name for the compound CaSO4•2H2O?
    9·2 answers
  • What are the procedures for performing an acid property test
    8·1 answer
  • A crane lifts a 5,800-N block from the ground to 20 m above the ground in 80 seconds. How much Power
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!