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Dafna1 [17]
3 years ago
13

True or false: a mixture is always made up of a combination of elements

Chemistry
1 answer:
FromTheMoon [43]3 years ago
8 0
A mixture has lots of different elements that are not necessarily bonded to each other, like sea water has lots of dirt, animals, and plant parts in it.  Compared to a solution (strictly salt and water, which bond and ionize with each other).
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A student weighs out 0. 0422 g of magnesium metal. The magnesium metal is reacted with excess hydrochloric acid to produce hydro
lutik1710 [3]
  • The student weighs out 0.0422 grams of the metal magnesium, thus we can figure that the more's, the magnesium he used, is the mass of the magnesium over the more mass, which is 0.024422.
  • That is approximately 0.001758.
  • Furthermore, it claims that too much hydrochloric acid causes the metal magnesium to react, producing hydrogen gas.
  • The volume of collected gas is 43.9 cc, the mastic pressure is 22 cc, and a sample of hydrogen gas is collected over water in a meter.
<h3>Is it true that calculations made utilizing experimental and gathered data result in a percent error? </h3>
  • Consequently, we are aware that magnesium and chloride react.
  • We create 1 as the reaction ratio is 1:2.
  • The hydrogen and 1 are more.
  • Magnesium chloride is more.
  • Therefore, based on this equation, we can infer that the amount of hydrogen that would be created in this scenario is greater than the amount of magnesium present here, or 0.001758 more.
  • Among hydrogen, there is.
  • \Once we convert the temperature from 32 Celsius to kelvin, we can tell you that the temperature is actually about 5.15 kelvin.
  • The gas has a volume of 43 in m, which is equal to 0.0439 liter and indicates that the pressure is approximately 832 millimeter.
  • Mercury, which is 2 times 13332 plus ca, or roughly 110922.24 par, is a mathematical constant.
  • So, in this instance, we are aware that p v = n r t.
  • The r in this case equals p v over n t, thus we want to determine the r.
  • So p is 110922.24. The temperature is 305.15 and the V is 0.04  over the n is 0.001758.
  • Let's proceed with the calculations right now.
  • In this instance, you will discover that the solution is 9.077 times 10; that is all there is to it.

To learn more about Magnesium chloride reactions visit:

brainly.com/question/27891157

#SPJ4

3 0
2 years ago
Gordon throws a baseball into the air. It rises, stops when it reaches its greatest height, and then falls back to the ground. A
Ivahew [28]

That would be when the baseball is rising. The energy from the throw is kinetic energy.

7 0
3 years ago
Read 2 more answers
Hydrogen selenide (H2Se) reacts with water according to the following equation.
LekaFEV [45]
H2Se is the acid as it is donating H+ to H2O and forming SeH- (which is conjugate base).

H2O is the base since it’s receiving H+ from H2Se to form H3O+ (which is the conjugate acid)

Se is in the same group as O but is in different period which means Se has higher radius compred to O. this led to H-O bond being stronger than H-Se bond and H-Se bond which in turn makes it easier for H2Se to donate H to H2O
4 0
3 years ago
What describes the basis of the band theory of metallic bonding
Artist 52 [7]

1. Metallic bond is a type of chemical bond.

2. Metallic bond is formed between electrons and positively charged metal ions.

3. Metallic radius is defined as one-half of the distance between the two adjacent metal ions.

4. Metallic bond increace electrical and thermal conductivity.

5. Metals conduct heat, because when free moving electrons gain energy (heat) they vibrate more quickly and can move around.

3 0
4 years ago
Name the following hydrocarbon
Alex17521 [72]
I Think The answer is c I hope it helps Message Me if I’m wrong and I’ll change My answer and fix it for you
8 0
2 years ago
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