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Mumz [18]
3 years ago
7

Please help on 44. /45./ 46./47,

Chemistry
1 answer:
Aleonysh [2.5K]3 years ago
4 0
The only one that I can do without google is 47. Sorry that I can't answer the others. The answer to 47 is this: you know that the western side of the hill has the steepest slope because the ovals showing altitude are way closer together. The closer the circles/ovals are, the steeper the slope is.

Sorry if this doesn't help much, but I answered what I could without cheating.

Foxeslair
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Bach Company paid $120,000 to purchase a machine on January 1, 2012. During 2014, a technological breakthrough resulted in the d
Amanda [17]

Answer:

Explanation:

a) calculate the total avoidable cost in keeping the old machine and buy a new machine:

 PARTICULARS                                  KEEP OLD              BUY NEW

                                                             AMOUNT($)            AMOUNT($)

Opportuinty cost of buying                40,000

the old machine

Purchase price                                                                         150,000

Operating expenses

(50,000 × 4 years)                               200,000

Operating expenses

18,000 × 4 years)                                                                        72,000

TOTAL AVOIDABLE COST                  240,000                        222,000

b)Decision:

Since the cost of operating the new machine is lower,it should be replaced

8 0
2 years ago
What is the compound MnCl2 called?
givi [52]

Answer is Manganese(ii) chloride

To answer this, you need to know the charges for both Mn and Cl

Mn is in the transition metal category and is unique with having 3 levels of charges

manganese - MN

Manganese(ii) - Mn^2+

Manganese(iii) - Mn^3+


Cl is a nonmetal with the standard charge of Cl^-1

Since you have two charges that don't cancel out, they get switched.

So Cl would receive a positive 2. Because it was a positive 2, we can assume that it starts with Manganese(ii). Then we add chloride to the end of it as it ends with Cl.

8 0
2 years ago
Mercury (II) oxide decomposes to mercury and oxygen. In the chemical equation below, what is the subscript, x, on the oxygen equ
sertanlavr [38]
The correct subscript for the reaction would be two. Oxygen gas exists as a diatomic molecule in nature. Also, the subscript two would balance the reaction. In balancing reactions, it is important that the atoms on each side of the reaction is equal.
7 0
2 years ago
The job the part does within organism is the
kramer
The answer it the function
7 0
3 years ago
Enter your answer in the provided box. an aqueous solution containing 10 g of an optically pure substance was diluted to 500 ml
sladkih [1.3K]

Answer:

[α] = -77.5° / \frac{\textup{dm-g}}{\textup{mL}}

Explanation:

Given;

Mass of optically pure substance in the solution = 10 g

Volume of water = 500 mL

Length of the polarimeter, l = 20 cm = 20 × 0.1 dm = 2 dm

measured rotation = - 3.10°

Now,

The specific rotation ( [α] ) is given as:

[α] = \frac{\alpha}{c\times l}

here,

α is the measured rotation = -3.10°

c is the concentration

or

c = \frac{\textup{Mass of optically pure substance in the solution}}{\textup{Volume of water}}

or

c =  \frac{10}{500}

or

c = 0.02 g/mL

on substituting the values, we get

[α] = \frac{-3.10^o}{0.02\times2}

or

[α] = -77.5° / \frac{\textup{dm-g}}{\textup{mL}}

7 0
3 years ago
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