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Nikitich [7]
2 years ago
10

Onsider the reaction below.

Chemistry
1 answer:
mamaluj [8]2 years ago
8 0

Answer:

3.14 moles of hydrogen are produced

Explanation:

This is because for every 1 molesof hydrogen are produced 2 moles of oxygen are produced. So we take 6.28 divide it by 2 and we wend up with 3.14.

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Reactivity and flammability are are examples of properties.​
nika2105 [10]

Answer:

they are eamples of chemical properties

Explanation:

flammibility is the chemical makeup of the element that makes it flamable and reactivitie is the chemical makeup of an element that is able to reacte to another element

3 0
2 years ago
Chemical changes
Alex777 [14]
The correct answer is that chemical changes form new compounds. Chemical change is a change where the substance changes in identity or form new substances after undergoing a process. On the other hand, a physical change is a change in the properties of matter that does not change the identity of the substance. 
6 0
3 years ago
In general, what causes a sea breeze?
ella [17]

Answer:

The usual cause of sea breeze is the difference in specific heat capacity between land and water Land heats and cools more quickly than water. What is the cause of a sea breeze? The air over the land is warmed and rises, to a greater temperature than that over the sea.

Explanation:

Your answer is C ! <3

7 0
3 years ago
How do you unlock a post test on edmentum?
postnew [5]

Explanation:

A post-test or a mastery test can be unlocked if the learner who has the of it previously can complete the given tutorial with the test.

After the tutorial with the test, the learner will have to complete everything and if he passes the test with a completed answer then he will see that the Mastery Test has been unlocked. Also after the mastery test is unlocked it can be done again.

8 0
2 years ago
5.5x10² – 6.50x10'<br> Express the calculation in correct significant digits
OLga [1]

Answer:

6.15x10^2

Explanation:

Hello!

In this case, when performing mathematical operations with numbers in scientific notation, the first step is to write them in standard notation:

550 - 65.0

Thus, the result without any significant figures-based analysis is:

615.0

However, since 550 is significant to the ones and 65.0 to the tenths, we need to round the result to the bigger significance, in this case to the ones; therefore the appropriate result would be:

615

That in scientific notation would be:

6.15x10^2

Best regards!

5 0
3 years ago
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