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Lubov Fominskaja [6]
3 years ago
12

Riya rides his bike 63 miles in 270 minutes. What is his average speed in miles per hour? Be sure to include the equation for sp

eed in your answer.
Chemistry
1 answer:
antoniya [11.8K]3 years ago
6 0
Time t=270 minutes=270/60=9/2 hours
distance s=63 miles
average speed v=s/t=63 ÷\frac{9}{2}
=63×\frac{2}{9}
=14 miles/hour
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5 0
3 years ago
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Use the IUPAC nomenclature rules to give the name for Mg(ClO4)2
Makovka662 [10]

Answer:

The answer to your question is Magnesium Perchlorate

Explanation:

IUPAC Rules to name ternary salts of chlorine

1.- Ternary salts use prefixes and suffixes it depends on the number of oxygens they have.

Example

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Metal + Chlorine + 2 oxygens = Name of the metal + chlor + ite

Metal + Chlorine + 3 oxygens = Name of the metal + chlor + ate

Metal + Chlorine + 4 oxygens = Name of the metal + per + chlor + ate

For this compound the name is  Magnesium Perchlorate.

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2 years ago
A student dropped a piece of nickel metal into a solution of HCl(aq). He observed the formation of gas bubbles and collected the
omeli [17]

Answer:

a. The student performed the splint test incorrectly. He should of observed a popping sound when the splint was placed in the test tube.

Explanation:

It is given that a student performed an experiment where he dropped a nickel metal in to HCl solution. He observed the reaction and performed a splint test in the test tube that is filled with a gas which is formed while Nickle is dropped into the solution of HCl.

But the experiment that the student performed was incorrect. He must have observed the popping sound when the splint was placed in the test tube.

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Thus the correct option is (a).

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Sphinxa [80]

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KonstantinChe [14]

Answer:

Molecules, arranged, cube

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These are possible answers.

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