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3 years ago

PLEASE SHOW WORK I CANT FIGURE THESE OUT

Chemistry

1 answer:

Oksana_A [137]3 years ago

7 0

#2. There are 60 sec. in a minute and 60 mins. in an hour and 24 hours in a day. The math would be 60•60•60•24=5,184,000. Then, you multiply 5,184,000•7=36,288,000. Multiply 36,288,000•16=580,608,000.

#3. There are approximately 914.4 millimeters in 1 yard. So then, we multiply 914.4•54=49,377.6.

#4. I looked this one up, so I can't show the work for this one but the answer is 0.805 miles per hour.

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I NEED HELP PLEASE!!!!!

lisov135 [29]

Atoms can be divided more so thats not true. atoms from the same element arent all nesacarly identical because of isotopes

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3 years ago

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2 Na + 1 Cl2 → 2 Naci How many grams of NaCl are created from 23,2 grams Cl2?

evablogger [386]

37 grams of NaCl (when I mean equivalent I mean the ratio of the equation is 1:2 for moles or Cl2 and NaCl

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2 years ago

What's the Balance equation for: _C4H10O +_ O2--->_CO2+_H20

steposvetlana [31]

Answer:

C₄H₁₀O + 6O₂ ⇒ 4CO₂ + 5H₂O

Explanation:

Match the amount of reactants and products on both sides of the equation.

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3 years ago

noah rides his bike with a constant speed of 8 km/h. How long will he take to travel a distance of 16 kilometers?

katovenus [111]

Answer:

d/t=s

(divide 16)16/t= 8(divide 16)

t= 0.5 km/h²

Explanation:

Distance: 16 kilometres

Speed: 8 km/h

Time: ?

3 0

3 years ago

Read 2 more answers

Rank the compounds in each set in order of increasing acid strength.

Viktor [21]

Answer:

See explanation

Explanation:

For this question, we have to remember the effect of an atom with high electronegativity as "Br". If the "Br" atom is closer to the carboxylic acid group (COOH) we will have an inductive effect. Due to the electronegativity of Br, the electrons of the C-H bond would be to the Br, then this bond would be weaker and the compound will be more acid (because is easier to produce the hydronium ion $H^+$ ).

With this in mind, for A in the last compound, we have 2 Br atoms near to the acid carboxylic group, so, we will have a high inductive effect, then the C-H would be weaker and we will have more acidity. Then we will have the compound with only 1 Br atom and finally, the last compound would be the one without Br atoms.

In B, the difference between the molecules is the position of the "Br" atom in the molecule. If the Br atom is closer to the acid group we will have a higher inductive effect and more acidity.

See figure 1

I hope it helps!

5 0

4 years ago