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stiks02 [169]
3 years ago
8

Please help!!! I appreciate it

Chemistry
1 answer:
mojhsa [17]3 years ago
7 0
Copper (II): 2+
Lithium: 1+
Fluoride : 1-
Iodine: 1-
Iron (III): 3+
Calcium: 2+
Oxide: 2-
Nitride: 3-
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TEA [102]

Answer:

eliptical

Explanation:

4 0
3 years ago
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How many significant digits are 6.3590x10 7 mm
Svet_ta [14]
If you go by the decimal there should be 5 significant digits because 0 is a trailing zero and matters since it comes after a decimal. however if you do 

6.3590 x 10 ^7 = 63590000 then you would only have 4 significant digits because there is no longer a decimal to make the zero after the 9, significant. 

Hope this helps!
8 0
3 years ago
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Which kelvin temperature is equal to -73 c?
zmey [24]
The conversation rate is c+273=k
8 0
4 years ago
Which of the following is not among the advantages of generating nuclear energy?
WARRIOR [948]

B

While nuclear energy does not pollute the environment, it poses the risk of radiation which is harmful to organisms because it causes lethal mutations.

Explanation:

Nuclear fission, for example, releases neutrons and other particles (at very high speeds) that can ionize materials including DNA. This will induce mutations of DNA most of which are usually lethal to organisms. Gamma and X- rays are also produced by fusion reactions and  if exposed to organisms also cause mutations on DNA through double stranded breaks. Therefore, the risk of an accident of a nuclear reactor can have immense ramifications on the ecosystems.

Learn More:

For merits and demerits of nuclear energy check out;

brainly.com/question/1161965

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#LearnWithBrainly

7 0
3 years ago
HELP . Read the following graduated cylinder.
Anon25 [30]

The volume of the liquid from the graduated cylinder is 22.5 mL

The last option (22.5 mL) is the correct option

The question seems to be incomplete

The image that completes the question is shown in the attachment below.

From the image, we observe that the liquid meniscus is between the 20 mL and 25 mL marks. That means the volume will lie in this range.

NOTE: The meniscus of a liquid is the upward or downward curve seen at the top of a liquid in a container.

The type of curve shown in the image is a concave meniscus and the volume of the liquid is read from the bottom of the curve.

To read the value from the graduated cylinder, we will first determine the difference between two consecutive lines. Between the 20 mL and 25 mL mark (two thick lines), we have 5 spaces separated by thin lines.

The measure between two consecutive lines is the difference between two thick lines divided by number of spaces between them

∴ The measure between two consecutive lines = (25mL - 20mL) ÷ 5

The measure between two consecutive lines = 5mL ÷ 5 = 1 mL

Now, to read the position of the liquid,

Starting from the 20 mL mark, the liquid exceeds two more lines + half way to the next line ( that is 2mL + 0.5 mL)

∴ The position of the liquid is 20 mL + 2mL + 0.5 mL = 22.5 mL

Hence, the volume of the liquid from the graduated cylinder is 22.5 mL

Learn more here: brainly.com/question/19240870

3 0
3 years ago
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