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
ElenaW [278]
3 years ago
7

NEED HELP ASAP LAST QUESTION CANT GET WRONG !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Chemistry
1 answer:
yaroslaw [1]3 years ago
8 0

A local community needs to provide more electricity for its growing population. Currently, the community's electricity needs are met by coal-burning power plants several kilometres away. Citizens are concerned that burning more coal will produce too much air pollution.

Which of the following could be used as an alternative energy resource to help minimise air pollution in this community?

A.  hydroelectric energy

B.  solar energy

C.  wind energy

<u>D.   all of these </u>

<u />

You might be interested in
Please help me. Thank you so much to whoever decides to help me and I love you
Bumek [7]

Answer:

2,702.7027 I think ...

3 0
3 years ago
What are three main classifications of the elements
neonofarm [45]

Answer:

Metals, non metals and metalloid

Explanation:

4 0
4 years ago
Classify the organisms as vascular, nonvascular
blsea [12.9K]
A:vascular B:vascular C:Non-vascular D:Non-vascular
7 0
3 years ago
What does the number above the symbol represent?
forsale [732]

Answer:

D. The ionic number.

Explanation:

Whenever an element losses or gains an electron; it becomes charged, thus turns to an ion. The ion can either be positively charged when it losses an electron or negarively charged when it gains an electron. The number shows the required number of electrons gained (negative) or lost (positive).

4 0
4 years ago
Read 2 more answers
Calcium hydroxide is titrated with nitric acid. What volume of 0.0200 M calcium hydroxide is required to neutralize 35.00 ml of
gogolik [260]

Answer:

43.75 ml

Explanation:

Given that the equation of the reaction is;

2HNO3(aq) + Ca(OH)2(aq) ---> Ca(NO3)2(aq) + 2 H20(l)

Concentration of acid CA= 0.05 M

Concentration of base CB = 0.02 M

Volume of acid VA = 35.00ml

Volume of base VB= ???

Number of moles of acid NA= 2

Number of moles of base NB=1

From

CAVA/CBVB= NA/NB

Making VB the subject of the formula;

VB= CAVANB/CBNA

VB= 0.05 × 35 × 1/ 0.02 × 2

VB=1.75 /0.04

VB= 43.75 ml

8 0
3 years ago
Other questions:
  • What is the mass of 1.23 mol NaCl? Please explain
    15·1 answer
  • how many mL of a 3.5 M sodium hydroxide will be needed to neutralize 15mL of a 4.3 M hydrochloric acid solution?
    5·1 answer
  • The number of electrons in an ion with 16 protons and an ionic charge of 2- is ________.
    8·1 answer
  • Which of the following do you expect to have soil with the highest fertility
    7·1 answer
  • What is the total balance of jessie Robinson's real estate account?​
    12·1 answer
  • The volume of a gas is 450ml when it’s pressure is 1.00ATM. If the temperature of the gas does not change what is the pressure w
    15·2 answers
  • The amount of kinetic energy an object has depends on
    5·2 answers
  • What is the formula for heat of adsorbtion
    5·1 answer
  • What is the mass of a substance in 0.5 mol of nh3​
    9·1 answer
  • Water boils at 100 °C.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!