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
Dennis_Churaev [7]
3 years ago
6

Which of the following is a covalent bond? A NaCl B K2O C H2O D MgO

Chemistry
1 answer:
Black_prince [1.1K]3 years ago
7 0

Answer:

H_2O

Explanation: Research has proven that ;

Water is a Polar Covalent Molecule

It consists of 2 Hydrogen molecules bonded to one Oxygen molecule and  the two hydrogen atoms are not evenly distributed around the oxygen atom.

You might be interested in
NEED HELP FAST
andre [41]

Answer: im not writting a pharaphraph. Buuuuuuuuuuuut... explian the type of reaction then explanie how that type of reaction works.

Explanation:

6 0
3 years ago
Read 2 more answers
Explain why a coin is able float on top of the water
arsen [322]
Because of the surface tention.
7 0
3 years ago
Read 2 more answers
Can someone help me?
slava [35]

Answer:

0.067 mol

Explanation:

MV/1000 formula and use it to calculate how many moles of Ba(OH)2. If i wrong, tell me

4 0
3 years ago
Please answer, this is due in 30 minutes
notsponge [240]

Answer:

0.591 g of magnesium phosphate is the theoretical yield.

Magnesium nitrate is the limiting reactant.

Explanation:

Hello!

In this case, since the balanced reaction turns out:

3Mg(NO_3)_2+2Na_3PO_4\rightarrow Mg_3(PO_4)_2+6NaNO_3

Next, we compute the grams of magnesium phosphate yielded by each reactant, considering the present mole ratios and molar masses:

m_{Mg_3(PO_4)_2}^{by\ Mg(NO_3)_2}=1.00gMg(NO_3)_2*\frac{1molMg(NO_3)_2}{148.31gMg(NO_3)_2}*\frac{1molMg_3(PO_4)_2}{3molMg(NO_3)_2}  *\frac{262.86gMg_3(PO_4)_2}{1molMg_3(PO_4)_2} \\\\m_{Mg_3(PO_4)_2}^{by\ Mg(NO_3)_2}= 0.591gMg_3(PO_4)_2\\\\m_{Mg_3(PO_4)_2}^{by\ Na_3PO_4}=1.00gNa_3PO_4*\frac{1molNa_3PO_4}{163.94gNa_3PO_4}*\frac{1molMg_3(PO_4)_2}{2molNa_3PO_4}  *\frac{262.86gMg_3(PO_4)_2}{1molMg_3(PO_4)_2} \\\\m_{Mg_3(PO_4)_2}^{by\ Na_3PO_4} = 0.802gMg_3(PO_4)_2

Thus, we infer that the correct theoretical yielded mass is 0.591 g as magnesium nitrate is the limiting reactant for which it produces the fewest grams of product.

However, is not possible to compute the percent yield since no actual yield is given, and must be provided or indicated by the problem or an experiment and it not here, nevertheless, you may compute the percent yield by dividing the actual yield by the theoretical and then multiplying by 100:

Y=\frac{actual}{0.591g}*100\%

Best regards!

4 0
3 years ago
2. A solution is made by dissolving 3.88 g of NaCl in enough water to make 67.8 mL of solution. What is the concentration of sod
Sauron [17]

Answer:

is 23

Explanation:

i got it rigjt .......

3 0
2 years ago
Other questions:
  • Use the radius of a rubidium atom from the table below to calculate the number of rubidium atoms in a row 6.00 cm long. Assume t
    9·1 answer
  • using the following equation 2C2H6 + 7O2 --> 4CO2 + 6H2O if 2.5g C2H6 react with 170g O2, what is the limiting reactant?
    9·1 answer
  • At absolute zero, the average kinetic energy of the molecules is zero. True False
    9·2 answers
  • A 200 kg roller coaster car is located at the top of a hill where the height is 30 m. What is the velocity when it reaches the b
    8·2 answers
  • Balance the equation for aluminum burning in oxygen to form aluminum oxide. ____Al + ____O2 ----> Al2o3
    12·1 answer
  • Is that flirting? I'm not sure and I really need to know-
    13·1 answer
  • Calculate how many methane molecules and how many carbon and hydrogen atoms are there in 25 g of Methane?​
    8·1 answer
  • Which of these molecular geometries forms a molecule with a bent shape?
    13·1 answer
  • what would happen if we lost our planets core on earth blew up, would we all die or will we lose gravity or suficate, pls help.
    8·1 answer
  • All atoms of an element have the same number of ________. electrons neutrons protons protons plus neutrons
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!