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Alinara [238K]
3 years ago
9

Please help I have 50 questions for just SCIENCE :(

Chemistry
1 answer:
Mila [183]3 years ago
5 0
I thinks it’s C don’t come for me if it’s wrong lol
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H30 + = 1x10 -10m is this acid basic or neutral
gavmur [86]

Answer:Basic

Explanation:

The pH value of the acid is 10.0 which falls within the range of basic substances. A neutral substance has a pH of 7. Any substance with pH greater than 7 is basic while pH less than 7 is for Acidic

6 0
3 years ago
How do I get an atomic mass
ahrayia [7]
To calculate the atomic mass of a single atom of an element, add up the mass of protons and neutrons.
3 0
3 years ago
2 mg + 02–> 2Mg0 reaction type?
Serga [27]

Displacement reaction

5 0
3 years ago
Why do Group 12 elements have different properties than Group 13<br> elements?
blagie [28]
Group 12 Elements have two valence electrons while Group 13 Elements have three valence electrons.
Number of valence electrons tend to determine factors like reactivity. So elements with different number of valence electrons will have different properties.
That is why G12 and G13 have different properties
6 0
3 years ago
a student adds 3.5 moles of solute to enough water to make a 1500mL solution. what is the concentration?
aksik [14]
<h2>Hello!</h2>

The answer is:

MolarConcentration=\frac{3.5moles}{volume(1.5L)}=2.33molar

<h2>Why?</h2>

Since there is not information about the solute but only its mass, we need to assume that we are calculating the molar concentration of a solution or molarity. So, need to use the following formula:

MolarConcentration=\frac{mass(solute)}{volume(solution)}

Now, we know that the mass of the solute is equal  3.5 moles and the volume is equal to 1500 mL or 1.5L

Then, substituting into the equation, we have:

MolarConcentration=\frac{3.5moles}{1.5L}=2.33molar

Have a nice day!

7 0
3 years ago
Read 2 more answers
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