Ask question

Ask question

All categories

4 years ago

14

Why would you use a solution, such as a cabbage pH indicator, to measure the pH of household items? to see if food went bad to t

est the safety of water to make sure conditions are safe to use up old cabbage

2 answers:

san4es73 [151]4 years ago

4 0

Answer: ABC

Explanation:

storchak [24]4 years ago

4 0

Answer: to see if food went bad, to test the safety of water, to make sure conditions are safe

Explanation:

You might be interested in

Use bond energies to determine which halogen produces the most exothermic halogenation reaction with ethene. the c−f, c−br, and

Serga [27]

To know the total energy you must know that bond-breaking is endothermic (+) while bondbond-forming is exothermic (-). The bond energy of ethene is 602 kJ/mol. Since we break the ethene, that would be -602 kJ/mol.

For C-F: -602 + 552 = -50 kJ/mol
For C-Br: -602 + 280 = -322 kJ/mol
For C-I: -602 + 209 = -393 kJ/mol

<em>Since the most negative, hence exothermic, answer is C-I, the answer is C-I.</em>

3 0

3 years ago

How many moles of lead (Pb) atoms are in 354 g Pb?

3241004551 [841]

For the answer to the question above asking how many moles of lead atoms are in 354g Pb.
The answer is the third one among the given choices which is c. 1.71mol. <span>Start what you have and apply what you know: </span>
<span>354g Pb *1molPb/207g Pb =1.71 mol Pb</span>

4 0

4 years ago

When (r)-limonene is treated with excess h2 with a pd catalyst, two products are obtained. identify the relationship of those tw

Kay [80]

The products will be trans and cis isomers

7 0

3 years ago

50.0 mL of an HNO3 solution were titrated with 36.90 mL of a 0.100 M LiOH solution to reach the equivalence point. What is the m

Xelga [282]

Following reaction takes place between LiOH and HNO3

LiOH + HNO3 → LiNO3 + H2O

Thus, 1 mole of LiOH reacts with 1 mole of HNO3 to form 1 mole of LiNO3.

Now,
Number of millimoles of LiOH consumed = <span>36.90 X 0.100 = 3.690

</span>∴Number of millimoles of HNO3 present = 3.690
<span>
Now, Molarity of HNO3 = </span> $\frac{\text{number of millimoles of HNO3}}{\text{volume of solution (ml)}}$
= $\frac{3.690}{50}$ = 0.0738 M

Thus, <span>molarity of the HNO3 solution is 0.0738 M</span>

8 0

3 years ago

Based on the information in the table, which of the following arranges the bonds in order of decreasing

tatuchka [14]

Answer:

what grade so i can help

Explanation:

3 0

3 years ago

Read 2 more answers