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Over [174]
3 years ago
14

Please help me I'm so confused

Chemistry
1 answer:
iogann1982 [59]3 years ago
6 0

Answer:

105m/3hourz

Explanation:

35 miles per hour, so 3 hours

35x3=105 per 3 hours

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What is the mass of 2.50 moles of potassium chlorate in grams
Sedaia [141]

Answer: 306 grams are there in 2.50 moles of potassium chlorate

Explanation

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number 6.023\times 10^{23} of particles.

To calculate the number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

given mass of potassium chlorate = ?

Molar mass of potassium chlorate = 122.55 g/mol

Putting in the values we get:

2.50=\frac{xg}{122.55g/mol}

x=2.50mol\times 122.55g/mol=306g

306 grams are there in 2.50 moles of potassium chlorate

3 0
3 years ago
Hello people ~<br>Help me with this question.<br>Thanks in advance!​
Alekssandra [29.7K]

Hello!

The pollution due to oxides of sulfur gets enhanced due to the

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3 0
2 years ago
Help quick? Which of the following statements best compares nuclear power and hydropower based on their rates of renewal?
liubo4ka [24]

Answer:

Hydropower has a faster rate because water is continuously being recycled through the hydrogeological cycle.

Explanation:

The source of hydropower is mostly from water which is a part of the hydrogeological cycle. Water is renewed at a faster rate within the weather system from time to time. We can easily forecast and predict an areas potency of generating hydro-electricity. Water is a renewable resources.

For nuclear power, the source is geological. Not all elements are radioactive. A certain condition must be fulfilled for spontaneous radioactivity in an isotope. Minerals are mined for their useful radioactive materials which serves as fuels in nuclear power plant. Geological processes takes a very long time to occur and so the sources of nuclear power is not easily renewed. In fact, they are classified as part of non-renewable resources.  

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properties of elements within a ________ on the periodic table change in a predictable way from one side of the table to the oth
SpyIntel [72]
Properties change within a Row (or period) as the number of valence electrons in the outer shell increase
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Why don't I need prefixes to designate the number of each type of element when naming ionic compounds?
scoray [572]

We use prefixes in ionic compounds Don't use numeric prefixes like mono, di, tri, etc. when naming ionic compounds - they are used only to denote covalent molecular compounds.

5 0
3 years ago
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