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3 years ago

An object that has 0 acceleration will NEVER be in motio TRUE FALSE Check it

Chemistry

2 answers:

DedPeter [7]3 years ago

7 0

True

I am pretty sure

Stels [109]3 years ago

7 0

Answer:

true

Explanation:

Just think if a car was going 0 mph, would it move?

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This refers to the speed of an object at a specific moment in time

Marina CMI [18]

Answer:

Instantaneous speed is the speed of an object at a specific moment in time

8 0

3 years ago

Devon noticed that it has rained more this year than it did in each of the previous 10 years. How might this increase in rainfal

sergejj [24]

Answer:

Populations for whom water is a limiting factor will increase in size.

Explanation:

5 0

4 years ago

A solution is made by dissolving 100. g of cobalt(III)chloride in 250. g of water. to make a solution that has a density of 1.25

Mariulka [41]

Answer:

Option A) (I) 2.42 m (II) 2.16 M

Explanation:

Let's determine some information.

Solute = CoCl₃ (molar mass = 165.29 g/m); mass of 100 g

Solvent = Water, mass of 250 g

Solution mass = mass of CoCl₃ + mass of water

250 g + 100 g = 350 g of solution

If we want to reach molarity (mol/L), let's determine solution volume with density:

Solution density = solution mass / solution volume

1.25 g/mL = 350 g / solution volume

Solution volume = 350 g / 1.25 g/mL = 280 mL

Let's convert the volume to L → 280 mL = 0.280L

Let's convert the mass of solute to moles = 100 g / 165.29 g/m →0.605 mol

Mol/L = 0.605 moles / 0.280 L = 2.16 M

Now let's calculate molalilty (mol/kg of solvet)

We must convert solvent mass to kg → 250g = 0.250 kg

Then, 0.605 moles / 0.250 kg =2.42 m

8 0

4 years ago

Which sample of matter is a mixture (1) Br2(l) (2) K(s) (3) KBr(s) (4)KBr(aq)

SOVA2 [1]

Answer:

(4)KBr(aq)

Explanation:

A mixture is an impure substance made up of two or more substances that are joined together. Their composition is indefinite and not easily represented by a simple chemical formula.

KBr $_{aq}$ is a mixture because it made up of an aqueous solution of KBr. This suggests that the substance KBr is placed inside water.

Here, we have two states of matter which is the solid and the liquid coming together.

As with both mixtures, they can be separated by physical means, KBr aqueous solution can also be done this way.

5 0

3 years ago

What do u understand by the word ATOM

Zina [86]

Answer:

An atom is a particle of matter that uniquely defines a chemical element . An atom consists of cental nucleus that is usually surrounded by one or more electrons. Each electrons is negatively charged.

Hope this helps you! bye

6 0

3 years ago