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
zaharov [31]
3 years ago
10

5. Which quantities must be conserved in all chemical reactions?

Chemistry
2 answers:
k0ka [10]3 years ago
4 0
In a chemical reaction, the mass and energy must be conserved, as it states in the law of conservation of mass and also energy. Matter cannot be created not destroyed. 
sergey [27]3 years ago
3 0
A force of attraction that holds atom together 
<span>When atoms react they form a chemical bond which is defined as a force of attraction that holds atom together. A force of attraction is defined as a kind of force that draws two or more objects together regardless of distance. There are two major categories of forces of attraction, one is intramolecular and intermolecular. Intramolecular forces is the presence of forces in atoms internally. While intermolecular is the force by which the force that is existent in two or more elements. </span>
You might be interested in
Which statements accurately describe elements? Check all that apply.
svet-max [94.6K]

Answer:

  • Elements are made up of only one type of atom.
  • Each element has a unique chemical symbol.
  • Elements can be identified by their atomic number.

Explanation:

7 0
2 years ago
Read 2 more answers
What is one takeaway you have about future sea levels rising ?
Galina-37 [17]

Answer:

Our world will never be the same. Our beaches will be submerged, many towns, cities, states, and even countries will be partially if not completely submerged. All these human cities being flooded will kill thousands of people, pollute the ocean, and lose billions of dollars.

Explanation:

7 0
2 years ago
Read 2 more answers
How can you tell that a white powder is salt without tasting it?
ZanzabumX [31]

You can detect salt in water without tasting by measuring the density of the water. Place a glass of spring water and a glass of the suspected salt water on a balance scale and the heavier one contains salt. Other ways to test for salt in water is to put a drop of water on the end of a nail and place in a gas flame. If the water contains salt, the flame will turn a yellow/orange color.

7 0
3 years ago
Students were investigating properties of matter, but wanted to make sure that when they tested these properties they had proper
Mariana [72]

Answer:

See explanation

Explanation:

An intrinsic property is a property that is internal, that is, it characterizes the substance under study. The possession of an intrinsic property depends on the nature of the substance. An intrinsic property does not depend on amount of substance but on the nature of the substance.

Examples of intrinsic properties include; Density. Solubility, Melting Point, Freezing Point, Boiling Point, Conductivity etc.

Intrinsic properties really represent the matter that is being studied. For instance, the boiling point of water will always be 100°c. No other liquid can boil exactly at that temperature. Hence, this intrinsic property can always be used to identify an unknown liquid as water.

The students were right, studying intrinsic properties accurately represent the matter that is being studied.

4 0
3 years ago
harry potter flips a coin (not magical ) 8 times. He gets heads 1 time. What are the odds that his next flip will be heads? A 10
rodikova [14]
C. 50%
Unless the question is saying he only gets heads once, in which case it would be 0%. Or the coin could have 2 heads. Then it would be 100%.
But I'm pretty sure it's 50%.
7 0
2 years ago
Other questions:
  • A block of pine wood has a mass of 120 g and a volume of 300 cm3. What is the density of wood? (Show your work)
    10·1 answer
  • I neeeeeeeeeeeddddddddd help!!!
    10·2 answers
  • Magnesium burns in air with a dazzling brilliance to produce magnesium oxide: 2Mg (s) + O2 (g) →→ 2MgO (s) When 4.50 g of magnes
    13·2 answers
  • Why is the moon far away but look so close
    15·1 answer
  • (a) the characteristic odor of pineapple is due to ethyl butyrate, a compound containing carbon, hydrogen, and oxygen. combustio
    14·2 answers
  • When H2(g) reacts with Cl2(g) to form HCl(g) , 185 kJ of energy are evolved for each mole of H2(g) that reacts. Write a balanced
    5·1 answer
  • Students were asked to place a mint in their mouths and determine how long it took for the mint to dissolve. The
    9·1 answer
  • The change in entropy, Δ????∘rxn , is related to the the change in the number of moles of gas molecules, Δ????gas . Determine th
    14·1 answer
  • The primary function of a chloroplast is to -
    5·1 answer
  • Plsss help me :(((
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!