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
dlinn [17]
3 years ago
14

Help please! please answer with a good answer ​

Chemistry
1 answer:
KonstantinChe [14]3 years ago
5 0

Answer:

what the heck what is that?

Explanation:

You might be interested in
A simplified version of the Periodic Table of the Elements is provided. What type of elements would you most likely find in the
vesna_86 [32]

Answer:

Transition elements are present in this region.

Explanation:

5 0
2 years ago
Please help me i have to get this done now
Marysya12 [62]

Answer:

Calvatia craniiformis is the real answer, according to the biggest European Bilogical lecture

4 0
3 years ago
Read 2 more answers
An analysis for copper was performed on two pure solids. One solid was found to contain 43.0% copper; the other contained 32.0%
fgiga [73]

Answer:

No, these sample could no be same

Explanation:

Percentage of copper in both sample are different means both are taken from different sample because if we says both are from same sample then its violates the law of definite proportion

according to this law a given compound always contains same proportion of element by mass and it does not depend on the source

eg: water from sea and drainage both have same composition means same amount of oxygen and hydrogen by mass is present

Hence given samples are not same

8 0
3 years ago
Estimate ΔH for the reaction: C2H6(g) + Cl2(g)--> C2H5Cl(g) + HCl(g) given the following average bond energies (in kJ/mol): C
Leno4ka [110]

Explanation:

The reaction equation will be as follows.

    C_{2}H_{6}(g) + Cl_{2}(g) \rightarrow C_{2}H_{5}Cl(g) + HCl(g)

Using bond energies, expression for calculating the value of \Delta H is as follows.

    \Delta H = \sum B.E_{reactants} - \sum B.E_{products}

On reactant side, from C_{2}H_{6} number of bonds are as follows.

C-C bonds = 1

C-H bonds = 6

From Cl_{2}; Cl-Cl bonds = 1

On product side, from C_{2}H_{5}Cl number of bonds are as follows.

C-C bonds = 1

C-H bonds = 5

C-Cl bonds = 1

From HCl; H-Cl bonds = 1

Hence, using the bond energies we will calculate the enthalpy of reaction as follows.

  \Delta H = \sum B.E_{reactants} - \sum B.E_{products}

  =[(1 \times 348 kJ/mol) + (6 \times 414 kJ/mol) + (1 \times 242 kJ/mol)] - [(1 \times 348 kJ/mol) + (5 \times 414 kJ/mol) + (1 \times 327 kJ/mol) + (1 \times 431 kJ/mol)]            = -102 kJ/mol

Thus, we can conclude that change in enthalpy for the given reaction is -102 kJ/mol.

5 0
3 years ago
Caroline has a condition where the amount of oxygen her blood can hold is greatly reduced. This leads to a decrease in oxygen su
Sphinxa [80]
The correct answer is : Circulatory and respiratory.

This condition primarily affects Caroline's circulatory system. Since the main purpose of the circulatory system is to supply the rest of the body with oxygen, this condition is greatly reducing the effectiveness of the circulatory system.
The decrease in oxygen supply to the lungs causes the reduction of the respiratory system effectivness as well, since the lung cells need oxygen for their metabolic processes.
5 0
3 years ago
Read 2 more answers
Other questions:
  • The electron dot structure for CI is
    7·2 answers
  • What is the capacity to do work known as?
    14·2 answers
  • A weak acid, HF, is in solution with dissolved sodium fluoride, NaF. If HCl is added, which ion will react with the extra hydrog
    9·1 answer
  • The solubility of acetanilide in hot water (5.5 g/100 ml at 100∘C) is not very great, and its solubility in cold water (0.53 g/
    14·1 answer
  • The layer of skin that we see when we
    12·1 answer
  • Which of the following is the correct name for MgCl2?
    15·1 answer
  • 1. Graph a wave with an
    10·1 answer
  • What is the [SO32-) in the 0.080 M H2SO3 .080 M Solution?
    13·1 answer
  • A student drops some metal paper clips in a box of sand. The student uses a magnet to separate the metal paper clips from the sa
    10·1 answer
  • Enter the atomic symbol for an atom with a mass number of 72 and an atomic number of 33.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!