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
allsm [11]
3 years ago
6

4. What are two careers in science?​

Chemistry
2 answers:
rusak2 [61]3 years ago
8 0
The two careers in science is engineering and a doctor
In-s [12.5K]3 years ago
5 0

Answer:

the two careers in science are :

1) Engineer

2)Doctor

Explanation:

You might be interested in
A balloon filled with helium gas occupies 2.50 L at 25°C and 1.00 atm. When released, it rises to an altitude where the temperat
stira [4]

Answer:

8,19 L

Explanation:

The combined gas law is a equation that can be used <em>when the initial and final conditions -</em>pressure,volume,amount of moles,temperature-, <em>of a gas change</em> during a process. It can be written:

\frac{P1V1}{n1T1}=\frac{P2V2}{n2T2}

If the amount of the gas remains constant, then n1=n2 and we have:

\frac{P1V1}{T1}=\frac{P2V2}{T2}

For the problem we have:

<em>Note: When working with gases is important to use </em><em><u>absolute temperature values (°K, °K=°C+273,15):</u></em>

P1=1 atm, V1=2,5L, T1=25+273,15=298,15°K

P2=0,3 atm, V2=?, T2=20+273,15=293,15°K

V2=\frac{P1V1T2}{T1P2}=\frac{1atm*2,5L*293,15K}{298,15K*0,3atm}=8,19L

The new volume of the balloon is 8,19 L.

5 0
3 years ago
At construction sites, workers often reduce erosion by ____.
Naddik [55]
<h3><u>Answer;</u></h3>

<em>All the above</em>

Workers at construction sites often reduce erosion by;

  • <em>Moving excess sediment back to its original location </em>
  • <em>Planting trees </em>
  • <em>Spraying water on bare soil</em>
<h3><u>Explanation;</u></h3>
  • Soil erosion is a naturally occurring process which involves the wearing away of the topsoil by natural forces such as wind, water or other forces associated with farming.
  • <em><u>Construction of roads and buildings results to large amounts of soil erosion around the world. It is therefore important to put measures that would help reduce soil erosion at construction sites</u></em>. These measures uses principals of soil control such as implementing sediment control, limiting soil exposure, reducing the runoff velocity, and modifying topography among others.
5 0
3 years ago
a couple of pennies have a mas of 5.2 grams. Asuming that the pennies are 100% percent copper,how many moles of copper are the p
dangina [55]

Answer:

5.2g copper (Cu) => 0.082 moles copper (2 sig.figs.)

Explanation:

mole conversions:

grams to moles => divide by formula wt.

moles to grams => multiply by formula wt.

gas volumes to moles => divide volume by 22.4Liters/mole (STP conditions only)

This problem:

mass to moles => divide by formula wt.

mass = 5.2g = 5.2g/63.5g/mole = 0.082 moles copper (2 sig.figs.)

5 0
2 years ago
How many grams of FeCl 3 are in 250. mL of a 0.100 M solution?
Naddika [18.5K]

Answer:

The correct answer is option B

Explanation:

$Molarity=\frac{Weight}{Molecular \,weight} \frac{1000}{V(in \, ml)}

Given values,

Molarity of $FeCl_3=0.100M$

Volume of solution, $V=250ml$

Molecular weight of $FeCl_3=162.2$

Substituting this values in Molarity formula, we get

$0.1=\frac{weight}{162.2} \times\frac{1000}{250} $\\$\Rightarrow 16.22=weight\times4$\\$\Rightarrow weight=\frac{16.22}{4} $\\$\therefore weight=4.06g$

5 0
3 years ago
How to determine whether an element is paramagnetic or diamagnetic?
givi [52]
To determine whether an element is paramagnetic or diamagnetic, you need to examine the electron configuration of the element. If it has unpaired electrons, then the substance is paramagnetic. If the electrons are paired, then it is diamagnetic.
7 0
3 years ago
Other questions:
  • Dante drew a diagram to show how a wire uses the magnetic field of a magnet to induce an electric current. How can Dante correct
    12·2 answers
  • Which two particles are found in the nucleus of an atom?
    5·2 answers
  • What is the difference between a amalgam and alloy.
    15·1 answer
  • What is sodium + oxygen when doing ionic bonds
    7·1 answer
  • What elements are in the star sirius?
    5·1 answer
  • An electrical company charges 15 p per unit of energy (kWh).
    14·1 answer
  • What did Rutherford’s nuclear atomic model not explain?
    13·1 answer
  • How can you change a objects state of matter
    5·1 answer
  • How many moles of Gold (III) sulfide must decompose to produce 4.32 moles of gold
    13·1 answer
  • Once a rate law is determined from trials with concentration and rate data, what is the minimum number of additional trials that
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!