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alekssr [168]
3 years ago
9

What is 2000 converted to scientific notation

Chemistry
2 answers:
schepotkina [342]3 years ago
5 0
2 x 10^3 would be scientific
Tpy6a [65]3 years ago
3 0
2 x 10 ^ 3 
should be the answer ^ 3 is the exponent
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Match each of the following descriptions to thecorrect element listed
Slav-nsk [51]

Answer: Please see explanation for answer

Explanation:Matching the  descriptions to the correct element listed gives

Element Group Name Group No Metal/ Nonmetal/ Metalloid Description

Neon    Noble gases       18           Non metal Colorless, tasteless, and        odorless gas, unreactive, nonconductive.

Bromine      Halogens   17          Non metal Not found as a free element (uncombined) in nature, reddish-brown liquid that vaporizes readily at room temperature to a red gas with a strong disagreeable odor.

Beryllium       Alklaline earth metal  2    Metal  Silvery-white, ductile, malleable, conductive solid with a high melting point for this type of element

Platinum     Platimum group metals  10   Metal      Silvery white, relatively soft, low density, conductive solid that is not found as a free element in nature but commonly found combined in alloys with copper or nickel

Potassium   Alkali Metals   1   Metal  Soft, easily cut with a knife to expose a silvery surface that rapidly oxidizes in air; never found uncombined in nature

Silicon    Carbon family     1`4  Metalloid   Metallic luster and grayish solid, very common in rocks and gemstones such as amethyst and opal, semiconductor

Sulfur   Calcogens      16  Non metal  Pale yellow, odorless, brittle solid at room temperature, nonconductor

4 0
3 years ago
What prediction is most likely, based on the data?
Reil [10]

Answer:

b

Explanation:

8 0
4 years ago
Read 2 more answers
Delivery of oxygenated blood to all tissues around the body involves what to life functions?
sasho [114]
<span>respiratory and circulatory </span>
3 0
3 years ago
Please explain the difference between reactants and products in a chemical reaction.
KonstantinChe [14]

Answer

A reactant is a substance that is present at the start of a chemical reaction. These are what breakdown to form products and its always to the right.

A product is a substance that is present at the end of a chemical reaction. These are what are formed after the reactants are broken down, the end result.

7 0
3 years ago
A balloon is inflated with 0.2494g of helium to a pressure of 1.26atm. If the desired volume of the balloon is 1.250L, what must
Xelga [282]

Answer:

307.80K

Explanation:

Mass = 0.2494g

Pressure = 1.26atm

Volume = 1.25L

Temperature (T) = ?

Molar mass of He = 4.0g/mol

To solve this question, we'll have to use ideal gas equation which is

PV = nRT

P = pressure of the gas

V = volume which the gas occupies

n = number of moles of the gas

R = ideal gas constant = 0.082J/mol.K

T = temperature of the ideal gas

n = number of moles = mass / molarmass

n = 0.2495 / 4.0

n = 0.0624moles

PV = nRT

T = PV / nR

T = (1.26 × 1.25) / (0.0624 × 0.082)

T = 1.575 / 0.0051168

T = 307.80K

The temperature of the gas is 307.80K

6 0
4 years ago
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