10. calcium fluoride ca 11. sodium nitride 12. magnesium chloride In formulas

First to answer right gets Brainiest!!!!!!

Elanso [62]

Answer:

1) Tetanus is a potentially fatal bacterial infection that affects the nerves

2)Tetanus causes painful muscle contractions, particularly in the jaw and neck. It can interfere with the ability to breathe, eventually causing death.

3) infants and the elderly are most likely but every one can get it.

4) The tetanus vaccine is made by taking the tetanus toxin and inactivating it with a chemical. The inactivated toxin is called a "toxoid." Once injected, the toxoid elicits an immune response against the toxin

5) Tetanus antiserum was developed in 1890, with its protective effects lasting a few weeks. The tetanus toxoid vaccine was developed in 1924, and came into common use for soldiers in World War II.

6)CDC recommends tetanus vaccination for all babies and children, preteens and teens, and adults

7) After the initial tetanus series, booster shots are recommended every 10 years.

8)help your immune system protect against these infections

9)Reported tetanus cases have declined more than 95%, and deaths from tetanus have declined more than 99% in the United States since 1947.

10) although the tetanus vaccine can be a very rare cause of a short-lived allergic reaction called "anaphylaxis," the tetanus vaccine does not cause death so the benefits outweigh.

11)They are most commonly found in animal manure and contaminated soil, but may exist virtually anywhere.

7 0

3 years ago

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Im literally failing some classes can some one help me with them

galben [10]

Answer:in can

Explanation:

5 0

3 years ago

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Perform the following for Part C of this lab:

kaheart [24]

Answer:

a. 0.0110 L

b. 0.0020 L

c. 0.011 mol

d. 5.5 M

e. 0.66 g

f. 33%

Explanation:

There is some info missing. I will use some values to show you the procedure and then you can replace them with your values.

Titrant (NaOH) concentration: 1.0 M

Vinegar volume: 2.0 mL

Initial buret reading (initial NaOH volume): 0.1 mL

Final buret reading (final NaOH volume): 11.1 mL

a. Calculate the volume of NaOH that was added to the vinegar. Convert this volume to liters. Show your work.

The volume of NaOH is the difference between the final and the initial buret reading.

11.1 mL - 0.1 mL = 11.0 mL × (1 L/1000 mL) = 0.0110 L

b. Convert the measured volume of vinegar to liters. Show your work.

2.0 mL × (1 L/1000 mL) = 0.0020 L

c. Calculate the moles of NaOH using the volume and molarity of NaOH. Show your work. moles = molarity x volume

moles = molarity × volume

moles = (1.0 mol/L) × 0.0110 L = 0.011 mol

d. Since the reaction ratio is 1:1, the moles of acetic acid in the vinegar is equal to the moles of NaOH reacted during the titration. Calculate the molarity of the acetic acid in the vinegar. Show your work. molarity = moles / volume

molarity = moles / volume

molarity = 0.011 mol/0.0020 L = 5.5 M

e. Calculate the grams of acetic acid in the vinegar. Show your work. mass = moles x molar mass (g/mol)

mass = moles × molar mass

mass = 0.011 mol × 60.05 g/mol = 0.66 g

f. Assuming that the density of vinegar is very close to 1.0 g/mL, the 2.0 mL sample of vinegar used in the titration should weigh 2.0 g. Use this to calculate the mass % of acetic acid in the vinegar sample. mass % = (mass acetic acid / mass vinegar) * 100%

mass % = (mass acetic acid / mass vinegar) * 100%

mass % = (0.66 g /2.0 g) * 100% = 33%

6 0

3 years ago

If 1.20 moles of copper react with mercuric nitrate how many moles of mercury form

Andrej [43]

Reaction of Copper with Mercuric Nitrate is as follow,

Cu + Hg(NO₃)₂ → Cu(NO₃)₂ + Hg

According to equation,

1 Mole of Cu reacts to form = 1 Mole of Hg

So,

1.20 Moles of Cu will react to produce = X Moles of Hg

Solving for X,

X = (1.20 mol × 1 mol) ÷ 1 mol

X = 1.20 mol of Hg
Result:
1.20 mole of Cu when reacted with mercuric nitrate produces 1.20 moles of Hg.

3 0

4 years ago

From the options provided for each element below, choose the properties that it may have based on its location in the periodic t

Mashutka [201]

Answer: The correct answer is Option A.

Explanation:

Fluorine is the 9th element in the periodic table which belongs to group 17 and period 2. It is a non-metal because it requires an electron to gain its stable electronic configuration.

The electronic configuration of this elements is: $1s^22s^22p^5$

This element requires 1 electron to attain stable configuration. It is an insulator and is not lustrous.

This element easily gains an electron and hence, is considered as a highly reactive non-metal.

Hence, the correct answer is Option A.

4 0

4 years ago

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