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
prohojiy [21]
4 years ago
6

Which of the following are designed to reduce

Chemistry
1 answer:
nalin [4]4 years ago
3 0

Answer:

The answer here would be 3, energy efficient appliances.

Explanation:

Energy efficient players are made to reduce the amount of energy used, which in turn reduce overall energy demand.

You might be interested in
In an atomic model that includes a nucleus, positive charge is
olganol [36]
<span>Because protons are positively charged and neutrons have no charge then it is safe to say that such an atomic model would have the positive charge concentrated in the center of an atom (option d).</span>
7 0
3 years ago
HURRY WHICH ONE IS IT??
aliya0001 [1]

Answer:

Protons are positive, electrons are negative, neutrons have to charge. Most of an Atoms mass comes from its protons and neutrons

Explanation:

I took some notes in my notebook about Atoms.

8 0
3 years ago
Read 2 more answers
What is the molar concentration of 35 mL of H2SO4 that neutralizes 25 mL of 0.320M NaOH
stira [4]
V ( H2SO4) = 35 mL / 1000 => 0.035 L

M ( H2SO4) = ?

V ( NaOH ) = 25 mL / 1000 => 0.025 L 

M ( NaOH ) = 0.320 M

number of moles NaOH:

n = M x V

n = 0.025 x 0.320 => 0.008 moles of NaOH

Mole ratio:

<span>2 NaOH + H2SO4 = Na2SO4 + 2 H2O
</span>
2 moles NaOH ---------------------- 1 mole H2SO4
0.008 moles moles NaOH ---------- ??

0.008 x 1 / 2 => 0.004 moles of H2SO4 :

Therefore:

M ( H2SO4) = n / V

M = 0.004 /  0.035

= 0.114 M

hope this helps!



6 0
3 years ago
How many molecules are in 13 moles of oxygen?
natima [27]

Answer:

mass/13of molecules .........

8 0
3 years ago
Read 2 more answers
What geometric shape is the carbon dioxide molecule? The Lewis structure for CO2 contains two double bonds.
adelina 88 [10]
Answer: Linear

Explaination: The central atom of a carbon dioxide molecule is carbon. Carbon is tetravalent which just means it has 4 valence electrons. Because the valence shell isn’t full, the carbon atom can bond with other atoms creating a total of 4 bonds. This then allows the carbon to double bond with 2 oxygen atoms. Now, the atoms in the CO2 molecule Don’t share the electrons evenly because of atomic number or proton count. Because oxygen has an atomic number of 6, carbon has an atomic number of 4, and opposites attract (referring to the positivity of the nucleus and the negativity of the shared electrons), the oxygen atoms will have a slightly negative charge (-) and the oxygen will have a slightly positive charge (+ ). Therefore, the slightly negative oxygen atoms repel creating that linear shape.

7 0
3 years ago
Other questions:
  • Why should carbonated beverages be kept cold?
    8·1 answer
  • If i have about 68.2 grams of H2S, how many moles do i have?
    9·2 answers
  • A decrease in height of a column in a mercury barometer means that
    5·1 answer
  • According to collision theory, what three factors govern the effect of temperature on the rate of a chemical reaction?
    15·1 answer
  • Add coefficients to the reaction summary to show the net results of glycolysis. glucose + a ADP + b P i + c NAD + ⟶ x pyruvate +
    15·1 answer
  • Calculate the mass of a 0.255-ml sample of a liquid with density 0.660 g/ml.
    8·1 answer
  • Which type of emission has the highest penetrating power?
    11·1 answer
  • A measure of kinetic energy of particle motion within a substance is_____.​
    5·1 answer
  • What are molecules and what are they made of?
    13·1 answer
  • The graph below shows how the pH of the soil in
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!