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
arsen [322]
3 years ago
11

Which of the following is made of matter?

Chemistry
2 answers:
Maurinko [17]3 years ago
8 0
The sun because it is made up of helium and hydrogen
sergeinik [125]3 years ago
7 0

Answer:A

Explanation:

Matter is the substance of which all material is made. That means objects which have mass. Energy is used in science to describe how much potential a physical system has to change. In physics, energy is a property of matter.

You might be interested in
To prepare a lab solution a chemist dissolves solid potassium chloride in a given
Neporo4naja [7]

The solution could be described like a saturated and concentrated solution.

<h3>Solutions</h3>

Dissolution of solutions can occur in certain ways. These ways depend on the solvent dilution coefficient and the amount of solute.

If the amount of solute is less than the solvent can dissolve, the solution is unsaturated.

If the amount of solute is exactly the same, the solution is saturated.

If the amount is greater, the solution is supersaturated.

So, since the amount of solute is exactly equal to the amount that the solvent can dissolve, the solution is saturated and concentrated.

Learn more about solutions in: brainly.com/question/202460

5 0
1 year ago
Which particles can be stopped by human skin? ) alpha and beta particles only alpha particles alpha and gamma particles beta and
Helga [31]
Alpha and Beta particles can be stopped by our skin. Gamma particles cannot be stopped by our skin.
7 0
3 years ago
Read 2 more answers
for the mini turbines to work properly, which of the following criteria are important in choosing the material for their constru
Setler79 [48]

Answer:

metal

Explanation:

metal strong

3 0
3 years ago
In an accident, a solution containing 2.5 kg of nitric acid was spilled. Two kilograms of Na2CO3 was quickly spread on the area
storchak [24]

First we must write a balanced chemical equation for this reaction

Na_2CO_3 _(_a_q_)+ 2HNO_3_(_a_q_) \implies 2NaNO_3_(_s_) + CO_2_(_g_) + H_2O_(_l_)

The mole ratio for the reaction between HNO_3 and Na_2CO_3 is 1:2. This means 1 moles of Na_2CO_3 will neutralize 2 moles HNO_3. Now we find the moles of each reactant based on the mass and molar mass.

2500g HNO_3 \times \frac{mol}{63.01g\ HNO_3} = 39.67 mol\ HNO_3

2000g\ Na_2CO_3 \times \frac{mol}{105.99g \ Na_2CO_3} = 18.87 mol\ Na_2CO_3

\frac{18.87 mol Na_2CO_3}{39.67\ HNO_3} = \frac{1 molNa_2CO_3}{2 mol HNO_3}

The Na_2CO_3 was enough to neutralize the acid because 18.87:39.67 is the same as 1:2 mol ratio.

4 0
3 years ago
How many grams are there in 7.4 x 1023 molecules of H2SO4?
bazaltina [42]

7.4x10^23 = molecules of silver nitrate sample  

6.022x10^23 number of molecules per mole (Avogadro's number)  

Divide molecules of AgNO3 by # of molecules per mol  

7.4/6.022 = 1.229 mols AgNO3 (Sig Figs would put this at 1.3)  

(I leave off the x10^23 because they both will divide out)  

Use your periodic table to find the molar weight of silver nitrate.  

107.868(Ag) + 14(N) + 3(16[O]) = 169.868g/mol AgNO3  

Now multiply your moles of AgNO3 with your molar weight of AgNO3  

1.229mol x 169.868g/mol = 208.767g AgNO3

4 0
3 years ago
Other questions:
  • What is the coefficient of h2 when you balance the equation for this redox reaction? no2(g) + h2(g) → nh3(g) + h2o(l)?
    7·1 answer
  • Which of the following naming rules would apply to CaCO3?
    15·2 answers
  • 5. The density of a substance is 3.4 X 10^3 g/mL. Mixing it with another substance increases the density by 1.5 X 10^1 times. Wh
    12·2 answers
  • Which of the following is a major consequence of the shifting of the Intertropical Convergence Zone (ITCZ)? A. monsoon rains in
    13·1 answer
  • What type of molecular model is most accurate to the shape of a molecule?
    13·1 answer
  • What drives spontaneous reactions?
    6·2 answers
  • Calculate the minimum mass of ammonia needed to produce 396 kg of ammonium sulfate, (NH4)2SO4, and excess sulfuric acid.
    5·1 answer
  • Can u pls help me with this question ​
    6·1 answer
  • Pls helpppppppp!!!!!!!
    5·1 answer
  • CH3CH3Li ionic or covalent
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!