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
inysia [295]
3 years ago
8

Round your answer to the correct number of significant figures or decimal places: 0.005-0.0007=

Chemistry
1 answer:
Grace [21]3 years ago
4 0

Answer:

0.0043

0.004 if to one significant figure

0 to one decimal place.

You might be interested in
SOLUBILITY RULES: please help me with 2a-d
Sedbober [7]
A. K+, OH-
B. C6H5CO+, OH-
C. NH4+, Cl-
D. Mg++, 2 NO3-

Everything has 1 except for the Nitrate ion in D, which has 2
5 0
3 years ago
Examine the statement about alchemy
Arturiano [62]

Answer: B.

Explanation:

7 0
3 years ago
What does chemical reaction describe
Flauer [41]
A chemical reaction (signs)

- rusting
- change in base of chemical
- for example lets say u mix two chemicals, and then it becomes a different new chemical (it changed from the inside) 

a physical

- a physical reaction is outer looks not inside.
- it changes on the outside, like changing a color

3 0
3 years ago
How many control(s) are in an experiment
weqwewe [10]
You can have as many controls as necessary, But they must remain equal at all times in order to get the most accurate results
6 0
3 years ago
an engineer wishes to design a container that will hold 12.0 mol of ethane at a pressure no greater than 5.00x10*2 kPa and a tem
OleMash [197]

Answer:

The minimum volume of the container is 0.0649 cubic meters, which is the same as 64.9 liters.

Explanation:

Assume that ethane behaves as an ideal gas under these conditions.

By the ideal gas law,

P\cdot V = n\cdot R\cdot T,

\displaystyle V = \frac{n\cdot R\cdot T}{P}.

where

  • P is the pressure of the gas,
  • V is the volume of the gas,
  • n is the number of moles of particles in this gas,
  • R is the ideal gas constant, and
  • T is the absolute temperature of the gas (in degrees Kelvins.)

The numerical value of R will be 8.314 if P, V, and T are in SI units. Convert these values to SI units:

  • P =\rm 5.00\times 10^{2}\;kPa = 5.00\times 10^{2}\times 10^{3}\; Pa = 5.00\times 10^{5}\; Pa;
  • V shall be in cubic meters, \rm m^{3};
  • T = \rm 52.0 \textdegree C = (52.0 + 273.15)\; K = 325.15\; K.

Apply the ideal gas law:

\displaystyle \begin{aligned}V &= \frac{n\cdot R\cdot T}{P}\\ &= \frac{12.0\times 8.314\times 325.15}{5.00\times 10^{5}}\\ &= \rm 0.0649\; m^{3} \\ &= \rm (0.0649\times 10^{3})\; L \\ &=\rm 64.9\; L\end{aligned}.

4 0
3 years ago
Other questions:
  • The simplest form of all matter are small partials called
    7·1 answer
  • Which of the following vertebrates evolved in the Carboniferous period?
    6·2 answers
  • Which of the following is a description of an exothermic reaction?
    10·1 answer
  • Which part of a plant cell is responsible for converting light energy into chemical energy?
    6·2 answers
  • A solution containing a nonvolatile solute will have
    15·1 answer
  • Determine the oh of a solution that is 0.220 m in hco3
    13·1 answer
  • A 12.2-g sample of X reacts with a sample of Y to form 78.9g of XY. what mass of Y reacted?​
    5·1 answer
  • Group one elements, such as lithium, sodium, and
    10·1 answer
  • A pure sample contains only nitrogen and oxygen atoms. If the sample is 30.4% nitrogen, by weight, what is the empirical formula
    14·1 answer
  • What is the molar mass of Ca(NO3)2?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!