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
kykrilka [37]
2 years ago
5

Pls help I’m gonna fail

Chemistry
1 answer:
KengaRu [80]2 years ago
5 0

Answer: 1. People nowaday use electricity to heat up their home

2. A/C, Heater, thermostat

Explanation:

You might be interested in
starting with methane ,name all the steps and write the equations involved in tetrachlorination.Remember all arrows sharing move
anygoal [31]

Answer:

See Explanation and image attached

Explanation:

Methane is an alkane. The commonest chemical reaction that alkanes undergo is substitution. During a substitution reaction, one or more atoms of hydrogen is/are replaced in the alkane.

In methane, in the presence of sunlight and molecular chlorine gas, a homolytic fission of Cl2 occurs to yield chlorine radicals in an initiation step.

The propagation steps involve reaction of the methane with chlorine radicals. Certain intermediates continue to be formed along the way until the tetrachlorination product is finally obtained.

4 0
2 years ago
Which of the following elements has the highest electronegativity? hydrogen carbon chlorine fluorine
sergey [27]
The most eletronegative elements are to the right of the periodic table. The electronegativities increase as you move right.

Fluorine and Chlorine are the highest.

Fluorine is 4.0
Chlorine is 3.0

Fluorine is the answer.
6 0
3 years ago
Which statement best describes the amount of catalyst that remains at the end of a reaction?
Ivenika [448]
I believe the correct answer is C. The amount of catalyst is the same at the end as at the beginning of the reaction. Catalysts can't be consumed by the reaction thus is not D.
7 0
3 years ago
Read 2 more answers
A sample of gas has a mass of 0.560 g . Its volume is 125 mL at a temperature of 85 ∘C and a pressure of 757 mmHg .
-BARSIC- [3]

Answer:

132g/mole

Explanation:

using the formula PV=nRT should be used to solve for the number of moles (n).  R is a constant which is 62.3637 L mmHG/mole K.

Inorder for your units to match you will have to convert 125ml to .125L and the temperature of 85C to K . you do that by adding 273 to the 85C and get 358K.  Once you solve for n then you use that number and divide by the number of grams from the question (.560g) since molar mass is grams/moles.

4 0
3 years ago
Hamood backwards is hamood
ad-work [718]

Answer:

ano po yung sinasabi nyo

5 0
2 years ago
Read 2 more answers
Other questions:
  • Calculate the terminal velocity of a droplet (radius =R, density=\rho_d) when its settling in a stagnant fluid (density=\rho_f).
    8·1 answer
  • I really need help with this, someone help me please.
    14·1 answer
  • 137 lbs = how much ounces
    5·2 answers
  • In a biochemical reaction, an enzyme acts as a catalyst, causing the
    7·1 answer
  • HCI
    6·2 answers
  • When a gas is heated,
    12·1 answer
  • 12.
    10·1 answer
  • When something heats up, new energy is created, and when something cools down, energy is destroyed. agree disagree
    6·1 answer
  • Why do we use the metric system/US customary system
    8·1 answer
  • The energy levels of a quantum particle-in-a-box ______ as the quantum number increases.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!