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
monitta
3 years ago
15

Questions Answer all please

Chemistry
1 answer:
dybincka [34]3 years ago
6 0

Answer:

Both,

Both,

Vertical

Explanation:

When you push a lawn mower, you can be moving up and down or across, when your pushing a wheel barrel you can do the same, when you do a push up your going up and down which is vertical.

You might be interested in
how do i solve these equations using proust's law? we haven't gone over balancing chem equations in class and our teacher doesn'
kow [346]

Answer:

Explanation:

Ok so Proust's Law, better known as the Law of Definite Proportions, states that the components of a compound always exist in a fixed ratio. This means that it does not matter what the source of the components are nor the coefficients in front of them. The ratio your teacher is referring to is most likely mass percent/ percent composition. This ratio is the amount of the component over the amount of the entire compound times 100%.

*I am not very familiar with this law so please do with my answers what you will :)*

7.)

First, you want to find the percent composition (aka mass composition) of Na in NaCl.

 45.89 g Na
---------------------  x 100%  =  39.3%
116.89 g NaCl

So, there must be 39.3% sodium in NaCl. You can find how much chlorine is in NaCl by subtracting that percent by 100 (to find the percent composition of chlorine) then multiplying it by the mass.

100% - 39.3% = 60.7%

60.7% / 100 = 0.0607

116.89 g NaCl x 0.0607 = 70.91 g Cl₂

You could also just subtract the mass of sodium from the mass of sodium chloride to find the mass of chlorine.

116.89 g NaCl - 45.89 g Na = 71 g Cl₂

8.)

10.57 g Mg + 6.96 g O₂ = 17.53 g MgO

  6.96 g O₂
---------------------  x 100%  = 39.7% O₂
17.53 g MgO

9.)

6.46 g Pb = 1 g O₂

68.54 g Pb  =  28.76 g O₂

68.54 g Pb / 28.76 g O₂ = 2.83 g ≠ 6.46 g

No, the two samples are not the same because the proportion of lead to oxygen is not the same for both samples. In the first sample, there is 6.46 g lead for every oxygen. In the second sample, there is 2.38 g lead for every oxygen.

6 0
2 years ago
From which category of elements would you choose to make a container that would not shatter if dropped? Explain your answer plea
Eduardwww [97]
Container must be made up of non metallic elements which can typically covalently  bond and must have lone pairs of electrons  dative bonds in order to allow further stability.
6 0
3 years ago
Helium and nickel are examples of ________. These
emmasim [6.3K]

Answer:

Elements, in turn, are pure substances—such as nickel, hydrogen, and helium—that make up all kinds of matter.

Hope This Helps!       Have A Nice Day!!

3 0
3 years ago
What type of plate boundary would form where there is a mountain range present, known earthquake activity, but no trenches prese
Natasha_Volkova [10]

Answer:

continental-continental convergent boundary

Explanation:

When two continental plates converge, they smash together and create mountains. The amazing Himalaya Mountains are the result of this type of convergent plate boundary. The Appalachian Mountains resulted from ancient convergence when Pangaea came together.

5 0
3 years ago
Which of the following compounds is likely to make the best conductor when
Gnoma [55]

Answer:

c. KBr .

Explanation:

Hello!

In this case, since electrolytes are substances that are able to carry electric current in the form of electrons via ions, those that are ionic are said to have the greatest capacity to conduct the electricity; in such a way, since SO2, C6H12O6 and CO are non-ionic molecules but covalent, they are not good conductor, therefore the best conductor would be c. KBr as it is an ionic compound due to the electronegativity of the K-Br bond.

Best regards!

5 0
3 years ago
Other questions:
  • If an atom gains or loses an electron it tends to become what?
    13·2 answers
  • When a water molecule forms a hydrogen bond with another water molecule, which atoms are involved in the interaction? *?
    15·1 answer
  • What is one product of a condensation reaction between two amino acids, such as glycine and alanine?
    9·1 answer
  • What statement best describes the liquid state of matter
    7·1 answer
  • Suggest a pH value for lemonade
    13·1 answer
  • Is this how you draw a punnet square???
    6·2 answers
  • What is the Percent yield made if 3.9 grams of a substance were made experimentally while you calculated 3.6 grams of substance
    11·1 answer
  • The dorsal side of the leopard frog
    6·1 answer
  • What is the temperature if 2L of 3moles HCl react with 2atm?
    8·1 answer
  • What happens to that atom of magnesium-24 if it GAINS an ELECTRON?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!