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Ivanshal [37]
3 years ago
9

Physical properties are the characteristics of matter that can be seen or measured through direct observation.

Chemistry
1 answer:
navik [9.2K]3 years ago
8 0
Physical properties are the characteristics of matter that can be seen or measured through direct observation.
It is true
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How many milliliters (mL) are in 0.847 liters (L)
alex41 [277]

Answer:

847 mL

Explanation:

Step 1: Find conversion

1 L = 1000 mL

Step 2: Use Dimensional Analysis

0.847 \hspace{2} L(\frac{1000 \hspace{2} mL}{1 \hspace{2} L} )

<em>We see that Liters and Liters cancel out, so we simply multiply.</em>

847 mL

7 0
3 years ago
Consider two gases, A and B, which are in a container at room temperature. What effect will the following changes have on the ra
Mandarinka [93]

Answer:

A. The rate of reaction will increase or go up

B. The rate of reaction will decrase or go down.

Explanation:

Increasing the temperature will make the gas particles move faster. Faster movement will increase rate of collision between particles to cause a reaction. Decreasing the temperature will cause the opposite to happen.

8 0
3 years ago
Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom?
ser-zykov [4K]

Answer:

Option D

Explanation:

Rutherford deduced that the atomic nucleus was positively charged because the alpha particles that he fired at the metal foils were positively charged, and like charges repel. Alpha particles consist of two protons and two neutrons, so they are positively charged. In Rutherford's experiments most of the alpha particles passed straight through the foil without being deflected. However, occasionally the alpha particles were deflected in their paths, and rarely the alpha particles were deflected backward at a 180 degree angle.

Since like charges repel, Rutherford concluded that the cause of the deflections of the positively charged alpha particles had to be something within the atom that was also positively charged. Rutherford concluded from his metal foil experiments that most of an atom is empty space with a tiny, dense, positively charged nucleus at the center that contains most of the mass of the atom.

7 0
4 years ago
Which type of bond stores the most energy
Ronch [10]

Answer:

I'm not sure which bond stores the most energy but the ionic bond is stronger than the covalent bond.

Explanation:

7 0
3 years ago
Bromine has an atomic mass of 79.9 amu, but only has 2 naturally occurring isotopes, Bromine-79 and Bromine-81. If Bromine-80 do
galina1969 [7]

Educated Guess Here!

Since Br-80 does not exist, maybe that means Br-79 or Br-81 have very unequal abundances. For example, Br-79 may have 75% abundance whereas Br-81 may have 25% abundance.

5 0
3 years ago
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