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Triss [41]
3 years ago
6

Plzz help guysss!! How long would it take you to travel 8 miles at a speed of 1 mile per hour?​

Chemistry
1 answer:
GrogVix [38]3 years ago
6 0

Answer:

ksjdhfbjkdfbvbdvb

Explanation:

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When two or more substances blend but do not chemically combine it is a _____________.
Oksi-84 [34.3K]

Answer:

Mixture.

Explanation:

Hello,

In this case, when blending we are continuously sliding the substances until we obtain small particles that when do not chemically but physically combine we say they are forming a mixture. Nevertheless, when they chemically combine they form a chemical compound due to the formation of bonds between them.

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3 years ago
How many covalent bonds does oxygen form if each of its unpaired electrons participate in one bond?
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The oxygen atom has 4 valence electrons. Valence electrons are the electrons found in the outermost shell of an atom. These are the electrons that participate in chemical reactions during bonding. Since 4 electrons make up 2 pairs, an oxygen atom is capable of making <em>2 covalent bonds</em>.
8 0
3 years ago
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What color does red litmus paper turn in an acid base and neutral solution?
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<span> red litmus paper turns </span>blue <span>under basic or alkaline conditions, with the color change occurring over the pH range 4.5–8.3 at 25 °C (77 °F). Neutral litmus paper is purple.</span>
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Please help quickly i have exam
katrin [286]

Answer:

ALL EXCEPT

"O and S" and "F and Cl"

7 0
3 years ago
12.5 mL of 0.280 M HNO3 and 5.0 mL of 0.920 M KOH are mixed. Is the resulting solution acidic, basic or neutral?
svlad2 [7]

Answer:

The resulting solution is basic.

Explanation:

The reaction that takes place is:

  • HNO₃ + KOH → KNO₃ + H₂O

First we <u>calculate the added moles of HNO₃ and KOH</u>:

  • HNO₃ ⇒ 12.5 mL * 0.280 M = 3.5 mmol HNO₃
  • KOH ⇒ 5.0 mL * 0.920 M = 4.6 mmol KOH

As <em>there are more KOH moles than HNO₃,</em> the resulting solution is basic.

8 0
3 years ago
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