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Sidana [21]
3 years ago
9

Chemical properties of group one elements

Chemistry
1 answer:
ki77a [65]3 years ago
4 0

Answer:

There are called period.

Explanation:

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What volume is used to calculate the volume of a solid object ​
Degger [83]

Answer:

cubic measurements

Explanation:

i.e. cubic meter or cubic centimeter

3 0
3 years ago
Which lists only abiotic factors in this environment?
alukav5142 [94]

In this case, among the list of components given, the abiotic factors are water, rock, soil, and sun.

<h3>What is an abiotic factor?</h3>

An abiotic factor is a non-living part of an ecosystem that shapes its environment.

Biotic and abiotic factors make up a community via interaction.

Biotic factors are considered living things (having "life") while abiotic factors are simply non-living things.

Hence, in this case, among the list of components given, the abiotic factors are water, rock, soil, sun

Learn more about the abiotic factor here:

brainly.com/question/10111151

#SPJ1

4 0
2 years ago
4. A student started with a 0.032 g sample of copper which he took through the series of reactions described in this experiment.
Elodia [21]

Answer:

Y=48.6\%

Explanation:

Hello,

In this case, we can consider the following chemical reaction for the oxidation of copper which only occurs at high temperatures:

2Cu+O_2\rightarrow 2CuO

In such a way, for 0.032 grams of copper, the following grams of copper (II) oxide (black product) are yielded:

m_{CuO}=0.032gCu*\frac{1molCu}{63.546gCu} *\frac{2molCuO}{2molCu}*\frac{79.546gCuO}{1molCuO}  =0.078gCuO

Therefore, the percent yield is:

Y=\frac{0.038g}{0.078g}*100\%\\ \\Y=48.6\%

Best regards.

6 0
3 years ago
Which of these is an example of a physical change?
vladimir2022 [97]

Answer:

Their isn't your examples but I will give you mine

Freezing, Evaporation and so on.

6 0
3 years ago
A__________________ is a landform with high elevation and a more or less level surface
earnstyle [38]
A MOUNTAIN RANGE is a landform with high elevation and a more or less level surface
8 0
3 years ago
Read 2 more answers
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