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Mice21 [21]
3 years ago
5

How is hygiene and sanitation, such as handwashing, important to stopping the spread of water-borne illnesses? ( 50 POINTS ANSWE

R IT AS SOON AS POSSIBLE TO WIN FAST!!!!!!!!!!!!!!!!! :) ) ( A SHORT ANSWER PLEASE)
Chemistry
1 answer:
Kamila [148]3 years ago
6 0

Answer: Handwashing. It is estimated that washing hands with soap and water could reduce diarrheal disease-associated deaths by up to 50% 1. Researchers in London estimate that if everyone routinely washed their hands, a million deaths a year could be prevented 2.

Explanation:

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An element A has an atomic number of 11 and another element B has an atomic number 17 (A
MArishka [77]

Answer:

can anyone tell me how to get +7!67:$'!$

3 0
3 years ago
2.50 g CuCl2 equals how many moles
Vitek1552 [10]
The molar mass of CuCl2 is 134.45 g/mol; therefore, you divide 2.5 g of CuCl2 by 134.45 g of CuCl2 leaving you with 0.019 moles
4 0
3 years ago
Read 2 more answers
Write a net ionic equation to show that benzoic acid, C6H5COOH, behaves as a Brønsted-Lowry acid in water.
Nitella [24]

Answer:

H⁺(aq) + H₂O(l) ⇄ H₃O⁺(aq)

Explanation:

According to Brönsted-Lowry acid-base theory, an acid is a substance that donates H⁺. Let's consider the molecular equation showing that benzoic acid is a Brönsted-Lowry acid.

C₆H₅COOH(aq) + H₂O(l) ⇄ C₆H₅COO⁻(aq) + H₃O⁺(aq)

The complete ionic equation includes all the ions and molecular species.

C₆H₅COO⁻(aq) + H⁺(aq) + H₂O(l) ⇄ C₆H₅COO⁻(aq) + H₃O⁺(aq)

The net ionic equation includes only the ions that participate in the reaction and the molecular species.

H⁺(aq) + H₂O(l) ⇄ H₃O⁺(aq)

5 0
3 years ago
Balancing Equations Worksheet
kakasveta [241]

Answer:

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1. N2+3H2=2NH3

2. CH4+2O2—>CO2+2H2O

3. P4+3O2—>2P2O3

4. 2H2+2NO—> N2+2H2O

5. 2Na+Cl2—>2NaCl

6. TiCl4+4Na—>4NaCl+Ti

7. S8+12O2—>8SO3

8. 2KClO3 —> 3O2 +2KCl

9. Na3PO4 + Fe(NO3)3 —> FePO4 + 3NaNO3

10. 3Ca(OH)2 + 2H3PO4 —> Ca3(PO4)2 + 6H2O

11. HNO3 + NaHCO3 —> NaNO3 + H2O + CO2 (The equation is balanced)

12. 2H2O2 —>2H2O + O2

13. C3H8 + 5O2 —> 3CO2 + 4H2O

14. 6H2O + 6CO2 —> 6O2 + C6H12O6

15. 2AgNO3 + Cu —> Cu(NO3)2 + 2Ag

16. CBr4 + 2Cl2 —> CCl4 + 2Br2

17. Cu + 2H2SO4 —> CuSO4 + 2H2O +SO2

18. 3Na2S + 2Fe(NO3)3 —> Fe2S3 + 6NaNO3

19. Pb(OH)2 + 2HCl —> 2H2O + PbCl2

20. 2AlBr3 + 3K2SO4 —> 6KBr + Al2(SO4)3

21. 2Na3PO4 + 3CaCl2 —> 6NaCl + Ca3(PO4)2

22. 2Al + 6HCl —> 3H2 + 2AlCl3

23. 2NH3 + H2SO4 —> (NH4)2SO4

24. 2C8H18 + 25O2 —> 16CO2 + 18H2O

25. CaCO3 + 2HCl —> H2O + CO2 + CaCl2

26. Na2O + H2O —> 2NaOH

27. 2NaHCO3 —> H2O + CO2 + Na2CO3

28. P4 + 3O2 —> 2P2O3

29. Fe(NO3)3 + 3NaOH —> Fe(OH)3 + 3NaNO3

30. 2Na + 2H2O —> H2 + 2NaOH

31. Na2SO3 + 2HCl —> H2O + SO2 + 2NaCl

32. 2Zn + 2Cu(NO3)2 —> Cu2 + 2Zn(NO3)2

33. 2C2H2 + 5O2 —> 4CO2 + 2H2O

34. H2SO4 + 2KNO2 —> 2HNO2 + K2SO4

35. Cu + 4HNO3 —> Cu(NO3)2 + 2NO2 + 2H2O

36. 3I2 + 6NaOH —> 5NaI + NaIO3 + 3H2O

I hope I helped you ^_^

7 0
3 years ago
What letter represents the trough? :) PLEASE FAST! <br><br> 1) A<br> 2) B<br> 3) C<br> 4) D
NARA [144]
The correct Answer is A
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2 years ago
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