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Sergeu [11.5K]
3 years ago
14

Which two subatomic particles are located in the nucleus of an atom?

Chemistry
1 answer:
natta225 [31]3 years ago
4 0

Two subatomic particles that are located in the nucleus of an atom are Protons and Neutrons.

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Which of the following best explains how minerals get into streams?
Oliga [24]

Answer:

C:Rainwater dissolves minerals out of the rocks and soil along the stream during runoff

7 0
3 years ago
Read 2 more answers
How many grams of methanol (CH 3 OH, FM 32.04) are contained in 0.100 L of 1.71 M aqueous methanol (i.e., 1.71 mol CH 3 OH/L sol
Naddika [18.5K]

Answer:

5.48 g

Explanation:

The concentration in M represents the mol/L, or the number of moles in each L of the solution, and it can be calculated by the number of moles (n) divided by the volume of the solution (V) in L, so:

M = n/V

1.71 = n/0.100

n = 0.171 mol

The molar mass of methanol is 32.04 g/mol, and it is the mass (m) divided by the number of moles:

FM = m/n

32.04 = m/0.171

m = 5.48 g

5 0
4 years ago
The density of water at 40°c is 0.992 g/ml. what is the volume of 2.50 g of water at this temperature?
Nikolay [14]

To calculate for the volume of a substance, simply get the ratio of the mass and density. That is:

Volume = mass / density

 

Therefore by substitution:

Volume = 2.50 g / (0.992 g / mL)

<span>Volume = 2.52 mL</span>

6 0
4 years ago
Read 2 more answers
When a 8 gram slice of bread is burned under a beaker of 4500 grams of water, it heats up the water by 1.3 degrees Celsius. The
dezoksy [38]

Answer:

5850\ \text{cal}

Explanation:

m = Mass of water = 4500 g

c = Specific heat of water = 1\ \text{cal/g}^{\circ}\text{C}

\Delta T = Change in temperature of water = 1.3^{\circ}\text{C}

Heat is given by

q=mc\Delta T\\\Rightarrow q=4500\times 1\times 1.3\\\Rightarrow q=5850\ \text{cal}

A slice of the bread contains 5850\ \text{cal}.

5 0
3 years ago
Could someone suggest an experiment to the statement on why hydrogen peroxide is stored in a dark bottle
Aneli [31]

Answer:

Hydrogen peroxide is not stored in clear bottles because they are transparent and light can easily penetrate through these glass bottles to oxidize into water and oxygen gas

Explanation:

there you go

5 0
3 years ago
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