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Basile [38]
3 years ago
9

1. What type of property is state of matter? How could you demonstrate this?

Chemistry
2 answers:
BartSMP [9]3 years ago
4 0
1. Physical matter
2. Ice melting or water boiling
miss Akunina [59]3 years ago
3 0
Physical change and example is ice melting
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A cart accelerating slower when mass was increased.<br> 1st Law - 3rd Law
svet-max [94.6K]

Answer:

Newton's second law

Explanation:

It is mentioning acceleration and mass

Newton's second law's equation = F = m*a

Hope u understood

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2 years ago
Urea, (NH2)2CO, is a product of metabolism of proteins. An aqueous solution is 37.2% urea by mass and has a density of 1.032 g/m
Feliz [49]

Answer:

The molarity of urea in this solution is 6.39 M.

Explanation:

Molarity (M) is <em>the number of moles of solute in 1 L of solution</em>;  that is

molarity = moles of solute ÷ liters of solution

To calculate the molality, we need to know the number of moles of urea and the volume of solution in liters. We assume 100 grams of solution.

Our first step is to calculate the moles of urea in 100 grams of the solution,

using the molar mass a conversion factor. The total moles of 100g of a 37.2 percent by mass solution is

60.06 g/mol ÷ 37.2 g = 0.619 mol

Now we need to calculate the volume of 100 grams of solution, and we use density as a conversion factor.

1.032 g/mL ÷ 100 g = 96.9 mL

This solution contains 0.619 moles of urea in 96.9 mL of solution. To express it in molarity, we need to calculate the moles present in 1000 mL (1 L) of the solution.

0.619 mol/96.9 mL × 1000 mL= 6.39 M

Therefore, the molarity of the solution is 6.39 M.

4 0
3 years ago
What is the chemical formula for the ionic compound calcium chloride?
Juliette [100K]

The answer to your question is,

B) CaCl2

-Mabel <3

6 0
3 years ago
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A group of students is investigating whether aluminum is a better thermal conductor than steel. The students take an aluminum wi
Mademuasel [1]

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Analysis of data suggests that; since the length of wax after 10 min is lower in Al than steel, aluminum is a better thermal conductor.

Ans B) Analyze the data

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3 years ago
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What happens to a glass of pure fruit juice when water is added to it?
Vesna [10]

Answer:

D is the answer i think

8 0
3 years ago
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