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3 years ago

What is the metric unit that is used to describe weight as a measure of the force of gravity ?

Chemistry

2 answers:

masha68 [24]3 years ago

8 0

Newton

Hope this helped

Inessa [10]3 years ago

6 0

The metric unit that is used to describe weight as a measure of the force of gravity is called a Newton.

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What do organisms do with the organic carbon

irina1246 [14]

Causes carbon to move from one reservoir to another

4 0

3 years ago

Exactly 10.7 mL of water at 28.0 °C is added to a hot iron skillet. All of the water is converted into steam at 100.0°C. The mas

kotegsom [21]

Answer:

The change in the temperature of the iron is a decrease of 14.0ºC.

Explanation:

See the file attached, since it was not possible to show the complete answer in the canvas.

Download pdf

3 0

3 years ago

How many grams of KBr is required to prepare 100 mL of 2.0 M KBr solution?

sesenic [268]

Answer:

23.8g

Explanation :

Convert 2.0M into mol using mol= concentration x volume

2.0M x 0.1L (convert 100mL to L since the units for M is mol/L)

= 0.2 mol

We can now find grams by using the molar mass of KBr

=119.023 g/mol (Found online) webqc.org

but can be be calculated by using the molecular weight of K and Br found on the periodic table

We can now calculate the grams by using grams=mol x molar mass

119.023g/mol x 0.2mol

= 23.8046 g

=23.8g (rounded to 1decimal place)

4 0

2 years ago

At what temperatures is a reaction that has a positive change in entropy

Setler [38]

Answer:

the answer is A

I made a chart for AP chem if you want to refer to it.

3 0

2 years ago

mixture or pure substance: 1.blood 2.dyes 3.self-raising flour 4.muesli 5.copper wire 6.distilled water 7.table salt 8.milk 9.br

jenyasd209 [6]

Answer: Mixture: Blood , Self raising flour,muesli ,dyes, milk, tea, air, bronze

Pure substance: Copper wire, distilled water, table salt, oxygen.

Explanation:

Mixture is a substance which is made up two or more number of compounds which chemically inactive and retain their distinct chemical properties.

Blood , Self raising flour,muesli ,dyes, milk, tea, air, bronze

Pure substance is defined as anything with uniform and unchanging composition is known s pure substance.

Copper wire, distilled water, table salt, oxygen.

5 0

3 years ago