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LUCKY_DIMON [66]
4 years ago
5

Why do you need to be extremely cautious around electric fans?

Chemistry
2 answers:
kolbaska11 [484]4 years ago
8 0
Could set a fire or someone could get hurt if they are young and arent really thinking
Oksanka [162]4 years ago
4 0
Might set a fire if you keep it plugged in or the fan could cut someone
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It is expected that US forests will
rosijanka [135]

Answer:

be able to meet long term timber needs.

Explanation:

Forest Services has been indicated for a long time the exhaustion of timer in the United States. However, in the recent decade, this trend has shown a reverse. The creation of nuclear energy and other technological developments that bring about drastic changes in our way of life. Gradually, the forest has recovered its trees and plants, and it is anticipated that timber will be available to meet long-term wood needs.

6 0
3 years ago
Để trung hoà 20ml dung dịch HCl 0.1M cần 10ml dung dịch NaOH nồng độ x mol/l . Giá trị của x là
elena55 [62]

The question is: To neutralize 20ml of 0.1M HCl solution, 10ml of NaOH solution of concentration x mol/l is required. What is the value of x?

Answer: The value of x is 0.2 M.

Explanation:

Given: V_{1} = 20 mL,   M_{1} = 0.1 M

V_{2} = 10 mL,        M_{2} = x

Formula used is as follows.

M_{1}V_{1} = M_{2}V_{2}\\0.1 M \times 20 mL = x \times 10 mL\\x = 0.2 M

Thus, we can conclude that the value of x is 0.2 M.

6 0
3 years ago
Add oxidation numbers to the following reaction: 2 H3PO4 (aq) + 2 Cr(s) → 2 CrPO4 (aq) + 3 H2(g). Identify the atom that is oxid
rewona [7]

The atom that is oxidized : Cr

The oxidizing agent : H₃PO₄

<h3>Further explanation</h3>

Reaction

2 H₃PO₄ (aq) + 2Cr(s) → 2 CrPO₄ (aq) + 3H₂(g)

Atoms undergoing a reduction reaction (decrease in oxidation number) and an oxidation reaction (increase in oxidation number)

  • Reduction (+1 to 0)

H⁺(in H₃PO₄) =+1

H₂=0

  • Oxidation (0 to +3)

Cr = 0

Cr³⁺(in CrPO₄ )

the oxidizing agent.⇒which undergoes a reduction reaction and oxidizes another compound/element : H₃PO₄

3 0
3 years ago
What does temperature measure?
Schach [20]
Temperature measures the (average) <span>kinetic energy of a system .</span>
8 0
3 years ago
Read 2 more answers
A rectangular solid measures 1.0m by 5.6cm by 2.1mm express its volume in cubic meters
Lemur [1.5K]
First, make sure all three measurements have the same unit (I recommend meters because that's what the question calls for)

1.0m=1.0m
5.6cm=0.056m
2.1mm=0.0021m


Then, you just want to multiply the three together to get the total volume.
1.0X0.056X0.0021=0.0001176 or 0.00012, if your teacher wants you to use proper sig figs
6 0
4 years ago
Read 2 more answers
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