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dedylja [7]
2 years ago
8

Isotopes of the same element will have a different number of neutrons, but the same number of protons. TRUE OR FALSE

Chemistry
1 answer:
Nikitich [7]2 years ago
6 0

Answer:

TRUE

Explanation:

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How many moles of solute would be dissolved in .500 kg of solvent to make a 2.50 molal NaOH solution?
Tom [10]

Molality is a measure of concentration that relates the moles of solute to the kilograms of solvent, it is described by the following equation:

Molality=\frac{molSolute}{kgSolvent}

We are given the molality(2.50m) and kilograms of solvent(0.500kg), so we solve for moles of solute from the equation:

molSolute=Molality\times kgSolvent\begin{gathered} molSolute=2.50m\times0.500kg \\ molSolute=1.25molSolute \end{gathered}

To make a 2.50molal NaOH solution would be needed 1.25moles of solute

Answer: 1.25 moles

3 0
1 year ago
diamond has a density of 3.26 g/cm3. what is the mass of a diamond that has a volume of 0.313 cm cubed
DaniilM [7]
D = m / V

3.26 = m / 0.313

m = 3.26 x 0.313

m = 1.02038 g

hope this helps!
6 0
2 years ago
Please help. 1.600x10^8 / 8.000x10^11
sweet-ann [11.9K]

Answer:

2x10^-4 = 2E-4

Explanation:

3 0
2 years ago
Read 2 more answers
Which of the following lists elements from lowest to highest atomic number
vitfil [10]
Lowest is Hydrogen highest is <span>Beryllium
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8 0
3 years ago
A light bulb has a resistance of 96.8 Ω. What current flows through the bulb when it is connected to a 120 V source of electrica
Finger [1]

Answer:

I = 1.23 A

Explanation:

Given that,

The resistance of the lightbulb, R = 96.8 Ω

Voltage, V = 120 V

We need to find the current flows through the lightbulb. Let the current be I. We can use the ohm's law to find it i.e.

V=IR\\\\I=\dfrac{V}{R}\\\\I=\dfrac{120}{96.8}\\\\I=1.23\ A

So, the current flows through the bulb is 1.23 A.

8 0
2 years ago
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