What energy resource can be used instead of fossil fuel

Answers

Answer 1
Answer: We could use solar power, wind power, geothermal power, hydroelectric power, or nuclear power. There are probably more but this is what I can think of off the top of my head. I hope this helps. Let me know if anything is unclear.

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Which development was a direct result of thebaby boom that followed World War II?
(1) decrease in school construction
(2) increase in suburbanization
(3) decline in crime rates
(4) rise in immigration

Answers

Many countries experienced the baby boom after the World War II ended. The baby boom resulted to the increase in suburbanization which is number 2. The more people/babies born, the more houses are needed. The countries who experienced the baby boom were not large enough to cater the population so mass developments happened.
the development that became a direct result of thebaby boom that followed World War II would be: increase in suburbanizationBaby boomers makes the urban city became a lot more crowded and often caused heavy traffic every single day. Because if this, many people decided to live in a suburban area while commuting to work in the city at the same time

Why are plant cells and animal cells diffrent?

Answers

because plants don't eat meat

water is mixed with solid calcium nitrate in a beaker. write balanced net ionic equation for the reaction

Answers

When calcium nitrate is added or mixed with water, the substance would dissociate into its corresponding ions which are calcium and nitrate ions. The ionic equation would be:

Ca(NO3)2 = Ca2+ + NO3-

Hope this answers the question. Have a nice day. Feel free to ask more questions.

Answer : The net ionic equation will be,

Ca^(2+)(aq)+2OH^(-)(aq)\rightarrow Ca(OH)_2(s)

Explanation :

In the net ionic equations, we are not include the spectator ions in the equations.

Spectator ions : The ions present on reactant and product side which do not participate in a reactions. The same ions present on both the sides.

The balanced ionic equation will be,

2H_2O(aq)+Ca(NO_3)_2(aq)\rightarrow 2HNO_3(aq)+Ca(OH)_2(s)

The ionic equation in separated aqueous solution will be,

4H^+(aq)+2OH^(-)(aq)+Ca^(2+)(aq)+2NO_3^(-)(aq)\rightarrow Ca(OH)_2(s)+2H^+(aq)+2NO_3^(-)(aq)

In this equation, H^+\text{ and }NO_3^- are the spectator ions.

By removing the spectator ions from the balanced ionic equation, we get the net ionic equation.

The net ionic equation will be,

Ca^(2+)(aq)+2OH^(-)(aq)\rightarrow Ca(OH)_2(s)

Which of the following elements would be classified as a nonmetal? sulfur aluminum silicon calcium

Answers

sulfur is a non metal 
Sulfur is considered a non-metal. Thanks for posting your question. Feel free to ask me any question. I might not always know the answer. Although i'll try to answer correctly. Have a good day love.

Consider the balanced chemical equation for the combustion of methane (CH4).mc026-1.jpg

Given that the molar mass of CO2 is 44.01 g/mol, how many liters of oxygen is required at STP to produce 88.0 g of CO2 from this reaction?
44.8 L
45.00 L
89.55 L
89.6 L

Answers

Answer:

                  89.6 L of O

Solution:

The balanced chemical equation is as,

                                CH₄  +  2 O₂    →    CO₂  +  2 H₂O

As at STP, one mole of any gas (Ideal gas) occupies exactly 22.4 L of Volume. Therefore, According to equation,

             44 g ( 1 mol) CO₂ is produced by  =  44.8 L (2 mol) of O₂

So,

                  88 g CO₂ will be produced by  = X L of O₂

Solving for X,

                        X = (88 g × 44.8 L) ÷ 44 g

                        X = 89.6 L of O

Took a guess and got it right!

D) 89.6 L

Which of the following devices can measure only atmospheric pressure?        A. Pressure gauge   B. Barometer   C. Tire gauge   D. Mercury tube

Answers

B.) Barometer

Hope that helps :-)