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enyata [817]
3 years ago
7

A theory is a ___.

Chemistry
1 answer:
Dimas [21]3 years ago
7 0

The answer is either A or C. Sorry I'm not much help :)

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__Mg + __Fe2O3 -> __MgO + __Fe
Anika [276]

Answer:

Your correct answer is A. 1,2,1,2

Explanation:

Please mark brainliest!

7 0
3 years ago
1(a). What is the solubility of calcium chloride (CaCl2) at 5°C?
In-s [12.5K]

Answer:

60 g/100 g water  

Explanation:

Find 5 °C on the horizontal axis.

Draw a line vertically from that point until you reach the solubility curve for CaCl₂.  

Then draw a horizontal line from there to the vertical axis.

The solubility of CaCl₂ is 60 g/100 g water.

7 0
3 years ago
How many millimeters (mm) is the length of a standard table if it is
matrenka [14]

Answer:

1,500 mm

Explanation:

if 1 meter = 1000 mm, 0.5 meters is 500 mm, so 1.50 meters is 1,500 mm

5 0
3 years ago
How did knowing the number of valence electrons in one
Orlov [11]

Explanation:

Knowing the number of valence electrons in one of the alien elements helps in identifying it because the number of valence electrons can help categorize the alien element. Similar elements have the same valence electrons and knowing the category of the element can help further analyze the element.

5 0
3 years ago
Read 2 more answers
A light-year is a way to measure ______ in space.
kirill115 [55]

Answer:

Distance

Explanation:

The light-year is a measure of distance, not time. It is the total distance that a beam of light, moving in a straight line, travels in one year.

4 0
3 years ago
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