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
slamgirl [31]
3 years ago
7

☝️☝️☝️help☝️☝️☝️!!!!

Chemistry
1 answer:
nataly862011 [7]3 years ago
7 0
8. A. Density is independent of size (an intensive property).
9. B. The highest density is 1786 g/20cm^3, or 89.3 g/cm^3. The least is 512 g/20cm^3, or 25.6 g/cm^3. Therefore, the difference is 89.3 - 25.6, or 63.7 g/cm^3.
10. C. A bottle filled with air weighs less than one filled with marshmallows, because air is less dense than marshmallows.
11. D. The number represents the number of protons in the nucleus of the atom, as well as the atomic number of the element.
12. C. The number represents the atomic mass of the element, which is determined based on the relative abundance of each form of the element.
You might be interested in
A Question 2 (2 points) Retake question
Ksivusya [100]

Answer:

3.3765 Mol O2

Explanation:

There is no work for this problem

3 0
3 years ago
IF anyone didn't do this E D G E N U I T Y thing here you guys go pass it around to people that need help this is what it is cal
SashulF [63]

Answer:

<h2>My My name: CORN CORNELIUS CORNWALL</h2><h2>My Age: 209374329 years old</h2><h2>Fav song : Baby by justin bieber</h2><h2>most legendary thing that i got : club penguin membership</h2>
5 0
2 years ago
How many grams are in 8.2 x 1022 molecules of N216?
hoa [83]

Answer:

N2I6 = 789 g

N2I6 = 8.2x1022 molecules N2I6 x 1 mole/6.02x1023 molecules = 1.36x10-1 moles = 0.136 moles

N2I6=0.136molesx789g/mole=107g=110g

----------------------

Hope this helps, have a BLESSED AND WONDERFUL DAY!

- Cutiepatutie ☺❀❤

7 0
3 years ago
The percent yield of a chemical reaction is valuable to many industries. Low percent yields can result in the loss of large amou
aev [14]

Using accurate measurements, using pure chemicals and performing the reaction under the most ideal conditions is important to get a valuable percent yield.

<h3>How we calculate the percent yield?</h3>

Percent yield of any chemical reaction is define as the ratios of the actual yield to the theoretical yield of the product and multiply by the 100.

To get the high percent yield or actual yield of any reaction, we have to perform the reaction under ideal condition because if we not use the standard condition then we get the low rate of reaction. Reactants should be present in the pure form as impurity make unwanted products and reduce the productivity of main product and accurate amount of reactants also important for the spontaneous reaction.

Hence, options (a), (b) & (c) are correct.

To know more about percent yield, visit the below link:

brainly.com/question/8638404

7 0
2 years ago
What is the metal cation in K,SO,? (cation is pronounced cat-ion and refers to a positively charged ion)
slamgirl [31]

Answer:

Potassium cation = K⁺²

Explanation:

The metal cation in K₂SO₄ is K⁺². While the anion is SO₄²⁻.

All the metals have tendency to lose the electrons and form cation. In given compound the metal is potassium so it should form the cation. The overall compound is neutral.

The charge on sulfate is -2. While the oxidation state of potassium is +1. So in order to make compound overall neutral there should be two potassium cation so that potassium becomes +2 and cancel the -2 charge on sulfate and make the charge on compound zero.

2K⁺²  ,  SO₄²⁻

K₂SO₄

8 0
3 years ago
Other questions:
  • For molecules with similar molecular weights, the dispersion forces become stronger as the molecules become more polarizable. fo
    11·1 answer
  • How and why does 2-Naphthol differ from benzoic acid when adding NaHCO3
    10·1 answer
  • NaOH, KOH, and Ca(OH)2 are examples of (4 points)
    6·1 answer
  • What is the atomic number of tellurium?
    8·1 answer
  • What adaptation might help a plant survive in an environment with cold winters?
    13·2 answers
  • Explain sp hybridization in acetylene molecule? Dr
    10·1 answer
  • The conjugate base of H2CO3 is ___________
    10·2 answers
  • Which term identifies the half-reaction that occurs at the anode of an operating electrochemical cell?
    10·1 answer
  • Which of these statements is false?
    9·1 answer
  • Can someone help me pls i understand if you don't know too DONT SEND IN LINKS THO
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!