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4 years ago

Why is it important to use the metric system when conducting scientific investigations?

Chemistry

1 answer:

mojhsa [17]4 years ago

4 0

Because its easier for scientists outside of the United States to understand your data.

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How can room things in a house save energy? List at least 5 ways in which you can save heat energy. Explain how each one can sav

pychu [463]

Answer:

brainly

Explanation:

Adjust your day-to-day behaviors.

Replace your light bulbs.

Use smart power strips.

Install a programmable or smart thermostat.

Purchase energy efficient appliances.

3 0

3 years ago

What is the volume of 1.9 moles of chlorine gas (Cl2) at standard temperature and pressure (STP)?

masya89 [10]

Considering ideal gas behavior, the volume of 1 mol of gas at STP is 22.4 L; then the volume occupied by 1.9 moles is 1.9mol*22.4L/mol = 42. 6 L.

Answer: 43 L

5 0

4 years ago

Read 2 more answers

You have 255 mL of a 1.5 M solution, how much liquid do you need to BOIL AWAY to increase the molarity to 2.5 M?

Lera25 [3.4K]

Answer:

102ml

Explanation:

by using the dilution formulae and then you slove for the second volume by making it subject of the fomular
when you get it you then subtract the final volume that you got from the initial volume because they asked from the question what liquid do u need to boil away

6 0

3 years ago

Sterling silver contains silver and copper metals. if a sterling silver chain contains 17.6g of silver and 2.40g of copper, what

Bogdan [553]

Answer:- 0.88

Solution:- Masses of silver and copper metals are given and we are asked to calculate the percentage of silver in the alloy.

mass percent of Ag = $(\frac{mass of Ag}{mass of alloy})*100$

Mass of Ag = 17.6 g

mass of Cu = 2.40 g

mass of alloy = 17.6 g + 2.40 g = 20.0 g

Let's plug in the values in the formula:

mass percentage of Ag = $(\frac{17.6}{20.0})*100$

mass percentage of Ag = 88%

So, the mass percentage of silver in sterling silver is 88% and in decimal form it is 0.88.

7 0

3 years ago

The law of the conservation of mass must be obeyed in a chemical reaction. what do the atoms do during a reaction that shows the

Rainbow [258]

A balanced equation is a prime example of the law of the conservation of mass as the number of atoms in the reactants is consistent with the number of atoms in the reactants meaning the amount of matter has not changed and no mass has been created or destroyed hence obeying the law.

8 0

3 years ago