1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
dexar [7]
3 years ago
14

Question 8 (10 points)

Chemistry
2 answers:
TEA [102]3 years ago
8 0

Answer:

<em><u>P</u></em><em><u>o</u></em><em><u>s</u></em><em><u>i</u></em><em><u>t</u></em><em><u>i</u></em><em><u>v</u></em><em><u>e</u></em><em><u>l</u></em><em><u>y</u></em><em><u> </u></em><em><u>c</u></em><em><u>h</u></em><em><u>a</u></em><em><u>r</u></em><em><u>g</u></em><em><u>e</u></em><em><u>d</u></em><em><u> </u></em><em><u>e</u></em><em><u>l</u></em><em><u>e</u></em><em><u>c</u></em><em><u>t</u></em><em><u>r</u></em><em><u>o</u></em><em><u>n</u></em><em><u>s</u></em>

I am Lyosha [343]3 years ago
4 0

Answer:

positively charged elctrons

You might be interested in
A 0.9182 g sample of CaBr2 is dissolved in enough water to give 500 ml of solution. what is the calcium ion concentration in thi
Nataly_w [17]

First calculate the number of moles of CaBr2 given the molar mass of 199.89 g/mol.

moles CaBr2 = 0.9182 g / (199.89 g / mol) = 4.60 x 10^-3 mol

 

We see that each CaBr2 contains only 1 mole of Ca, so the moles of Ca is also:

moles Ca+ = 4.60 x 10^-3 mol

 

So the molarity of this is:

Molarity Ca+ = 4.60 x 10^-3 mol / 0.500 L

<span>Molarity Ca+ = 9.19 x 10^-3 M</span>

5 0
3 years ago
6.the damaged of dna in blood cells in bronchial and alveoli may lead to?
cricket20 [7]

Answer:

Explanation:

H

5 0
3 years ago
Read 2 more answers
When the fish-tank water has a pH of 8.0, the hydronium ion concentration is 1.0 × 10-8 mole per liter. What is the hydronium io
Oduvanchick [21]
You must know and use the formula for pH.


pH = - log [H3O+], where [H3O+] is the molar concentration of hydronium ion.


So, when pH is 8.0 => 8.0 = - log [H3O+] and you can use antilogarithm (the inverse function of logarithm) to find [H3O+], in this way:


[H3O+] = 10^-8 = 1 * 10 ^-8 M


When, pH = 7.0 =>

7.0 = - log [H3O+] => [H3O+] = 1 * 10^ -7 M


Answer: 1*10^-7 mole / liter
5 0
3 years ago
What human activity contributes to air pollution?
Ne4ueva [31]

Answer:burning of fossil fuels and the decrease of oxygen and the increase of carbon dioxide

Explanation:

5 0
3 years ago
Read 2 more answers
Periodic Table: Why are group 1A elements called alkali metals?
FrozenT [24]

Answer:

Explanation:

The elements in Group I of the periodic table are called alkali metals. They are called alkali metals because they react with water to form alkali solutions. These metals are very reactive; hence they have to be stored under oil to protect them from corrosion by air and waterwaterwater

5 0
2 years ago
Other questions:
  • If 0.250 g of a gas sample represents 1.05x10–2 mol, what is the molar mass of the gas?
    10·1 answer
  • A gas cylinder contains 2.0 mol of gas X and 6.0 mol of gas Y at a total pressure of 2.1 atm. What is the partial pressure of ga
    14·2 answers
  • Describe the motion of the tiny particles that make up matter.
    14·1 answer
  • In each of the following indicate which reaction will occur faster. Explain your reasoning. (a) CH3CH2CH2CH2Br or CH3CH2CH2CH2I
    13·1 answer
  • When two substances react to form a new material with different properties, a _______change has occurred.
    12·1 answer
  • Worth 100 points plus ill mark brainliest
    5·1 answer
  • I need help if anyone will help plz
    14·1 answer
  • Determine the mass (in g) of a substance, with a density of 2.26 g/mL, that occupies 350.0 mL.
    8·1 answer
  • What is the valence number of an element that has 3 electron in its outermost shell?
    15·1 answer
  • What are the charecteristics of halogens
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!