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
topjm [15]
2 years ago
12

Plz help thx brainliest btw :)

Chemistry
2 answers:
katrin2010 [14]2 years ago
8 0
I’m gonna answer so you can mark the person above brainliest.
Marina86 [1]2 years ago
3 0

Answer:

1. earth metal 2. halogen 3.The elements are arranged in seven horizontal rows, called periods or series, and 18 vertical columns, called groups. ... Elements in the periodic table are organized according to their properties.

Inventor: Dmitri Mendeleev please name most brainliest

You might be interested in
When sodium chloride reacts with iron it forms sodium and iron (ll) Chloride. Write down the balanced equation and classify it \
BartSMP [9]

Answer:

NaCl + Fe2+  ---> FeCl2 + Na+

Single replacement

Explanation:

Na is replaced by Fe2+ to form FeCl2, and that is the only replacement. Thus, it is single replacement.

7 0
3 years ago
1.what happens in the nucleus of an atom when an alpha particle is emitted?
coldgirl [10]
1) The nucleus of an atom loses 2 protons and 4 neutrons.
2) The nucleus of an atom gains a proton and it's neutrons remain the same.
7 0
2 years ago
Read 2 more answers
A 500. mL gas sample is collected over water at a pressure of 740 mmHg and 25.0 °C. What is the volume of the dry gas at STP?
Lera25 [3.4K]

Answer:

Volume of dry gas at STP = 0.432 liters or 432 ml

Explanation:

Given:

Pressure (P) = 740 mmHg - 24 mmHg = 716 mmHg

Temperature (t) = 25 degrees C + 273 K = 298 K

500 ml = 0.5 l

Find:

Volume of dry gas at STP

Computation:

[P1][V1] / T1 = [P2][V2] / T2

[716][0.5] / 298 K = [760][ x Liters] / 273 K

x = 0.432 Liters

Volume of dry gas at STP = 0.432 liters or 432 ml

7 0
3 years ago
Which molecule is pentanoic acid?
Lana71 [14]

Answer:

A

Explanation:carboxyli

7 0
3 years ago
Identify three factors that characterize aquatic systems
givi [52]
While terrestrial biomes are shaped by air temperature and precipitation, aquatic systems are characterized by factors such as water salinity, depth, and whether the water is moving or standing. If that's what you mean?
3 0
3 years ago
Other questions:
  • In a closed container with a fixed volume, when the temperature of a gas doubles, the pressure of the gas is?
    9·1 answer
  • What two factors affect the strength of gravitational force
    9·1 answer
  • The right-hand side of the periodic table, which includes elements such as fluorine, krypton, and xenon, represents which type o
    6·1 answer
  • How many mol of lithium are there in 1.204 x 1024 lithium atoms
    11·1 answer
  • 15. Ammonium nitrate, NH4NO3, and aluminum powder react explosively producing nitrogen gas, water vapor and aluminum oxide. Writ
    5·1 answer
  • A 500 gram piece of metal has a volume of 2.75cm3 what is the density
    15·2 answers
  • What is the rate of a reaction if the value of k is 3 and A and B are each 2 M Rate kA2B?
    12·1 answer
  • Which physical change is endothermic
    14·1 answer
  • What is the volume of a 3.00M(mol/L) solution made with 122g of LiF?
    7·1 answer
  • Which two substances are among the four major types of organic compounds made by living things?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!