3 years ago

The ______ are new substances taht are created following a chemical reaction?

Chemistry

1 answer:

aleksandrvk [35]3 years ago

3 0

Answer: The product are the new substances that are created following a chemical reaction.

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Uranium in the isotope below had 140 nutrons

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Answer:

It has 140 neutrons because Mass number= No of protons + no of neutrons

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What is commonly used to run a central heating system?

Troyanec [42]

Answer :- Electrical energy

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1.Which of the following compounds give acidic solution with water:

m_a_m_a [10]

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How many seconds does it take a race horse to run six furlongs at 40.7 miles per hour if: I furlong = 40 rods; 5.5 yards = 1 rod

lana [24]

Distance traveled by the race horse=6 furlongs

Converting the distance from furlongs to rods: 40 rods =1 furlong

$6 furlongs*\frac{40rods}{1furlong} =240rods$

Converting the distance from rods to yards, feet and miles: 5.5 yards = 1 rod, 3foot =1 yard, 1 mile = 5280 feet.

$240rods*\frac{5.5yards}{1rod}*\frac{3foot}{1yard}*\frac{1mi}{5280feet}=0.75mi$

The given speed of race horse = 40.7mi/hr

Calculating the time required:

$0.75mi*\frac{1hr}{40.7mi}*\frac{60min}{1hr}*\frac{60s}{1min}= 66.34s$

Therefore, 66.34 s is required for a race horse to run six furlongs at 40.7 miles per hour.

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What distinguishes physical properties from chemical properties

ale4655 [162]

A physical property is an aspect of matter that can be observed or measured without changing it. A chemical property may only be observed by changing the chemical identity of a substance.

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