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
Leno4ka [110]
3 years ago
7

Which of the following is not an example of a science? a.geology b.astrology c.astronomy d.ecology

Chemistry
1 answer:
Rasek [7]3 years ago
6 0
I think it is b.astrology

You might be interested in
A student balanced the chemical equation Mg + O2 →MgO by writing Mg + O2 → MgO2. Was the equation balanced correctly? Explain yo
Amanda [17]

Explanation:

Charges on both magnesium and oxygen is 2. Though opposite in sign, they have equal charges so, both of them will be cancelled by each other.

As a result, formula of magnesium oxide is MgO and not MgO_{2}.

The student write the equation as Mg + O_2 \rightarrow MgO_2, it is not correct.

Therefore, given equation will be balanced as follows.

          2Mg + O_{2} \rightarrow 2MgO

Since, number of atoms on both reactant and product side are equal. Hence, this equation is completely balanced.

7 0
3 years ago
An atom that has 13 protons and 15 neutrons is isotope of the element A.) nickel B.) silicon C.) aluminum D.) phosphorus. Why?
joja [24]

An atom that has 13  protons and 15  neutrons  is isotope  of Aluminium (answer C)

<u><em>Explanation</em></u>

  • Isotope  is a form of the same element with   the equal number of protons but difference number  of neutrons  in  their nuclei.
  • In other words isotope has the same  atomic number but different mass  number.
  • Atomic  number of a element is determined by number of  protons of an element.

  • from the  periodic table   Aluminum in atomic number 13 therefore  it has 13 protons  <em>therefore an atom that  has 13  protons and 15 neutrons is   a isotope  of Aluminium. </em>
6 0
3 years ago
Read 2 more answers
Use the following scenario to answer the question: A cell has an antiport protein on its apical surface. The cell is placed in a
balu736 [363]

Answer:

The correct answer is "Secondary active transport".

Explanation:

Secondary active transport is a form of across the membrane transport that involves a transporter protein catalyzing the movement of an ion down its electrochemical gradient to allow the movement of another molecule or ion uphill to its concentration/electrochemical gradient. In this example, the transporter protein (antiporter), move 3 Na⁺ into the cell in exchange for one Ca⁺⁺ leaving the cell. The 3 Na⁺ are the ions moved down its electrochemical gradient and the one Ca⁺⁺ is the ion moved uphill its electrochemical gradient, because Na+ and Ca⁺⁺are more concentrated in the solution than inside the cell. Therefore, this scenario is an example of secondary active transport.

6 0
3 years ago
given the following reaction: CuO (s) + H2 (g) to Cu(s) + H2O (g). If 250 L of hydrogen gas are used to reduce copper (II) oxide
QveST [7]

24g is needed no explanation

4 0
3 years ago
Escribe 4 unidades de temperatura
olchik [2.2K]

Answer:

esta nublado

Explanation:

3 0
3 years ago
Other questions:
  • What kind of chemical do you use to remove old polish for customer who has artificial nails?
    7·1 answer
  • Which two particles are found in the nucleus of an atom?
    5·2 answers
  • Covert from cm to m plz and thank u:);)
    15·2 answers
  • How many formula units of CaCO3 are present in 4.72 n of calcium carbonate?
    6·1 answer
  • Large mountain ranges rising up from the ocean floor are called
    12·2 answers
  • The periodic table of the elements lists the elements in order of increasing atomic number. Each element has its own unique squa
    5·1 answer
  • Write a chemical equation for nh4+(aq) showing how it is an acid or a base according to the arrhenius definition.
    8·2 answers
  • Which will NOT occur when a light tray ray interacts with a smooth pane of glass?
    8·1 answer
  • What is the complete ionic equation for the reaction between Na2SO4 and
    10·1 answer
  • Convert the following temperature to c 67k b) 1671k
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!