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
IrinaK [193]
3 years ago
10

If silicon has a charge of -4, how many electrons does it have

Chemistry
1 answer:
Ksenya-84 [330]3 years ago
4 0

It has 4 because electrons are negative.

You might be interested in
Use the table to answer the question
My name is Ann [436]

Answer:

B

Explanation:

hope the picture helps you to understand:)

4 0
3 years ago
Read 2 more answers
Which of the following is true about two neutral atoms of the element gold?
Nuetrik [128]
C is correct on this problem
7 0
3 years ago
Read 2 more answers
Relative dating determines the relative age of fossils according to
KiRa [710]
The answer Is C.the layer of rock they're found in
7 0
3 years ago
Read 2 more answers
A screw decreases the amount of work done.<br><br> True<br> False
victus00 [196]

Answer:

tru

Explanation:

4 0
3 years ago
Read 2 more answers
Mercury (Hg) poisoning is a debilitating disease that is often fatal. In the human body, mercury reacts with essential enzymes l
alisha [4.7K]

Answer:

6 x 10⁵ kg Hg

Explanation:

The mass of mercury in the entire lake is found by multiplying the concentration of the mercury by the volume of the lake.

The volume of the lake is calculated in cubic feet:

V = (SA)x(depth) = (100mi²)(5280ft/mi)² x (20ft) = 5.57568 x 10¹⁰ ft³

Cubic feet are then converted to mL (1cm³=1mL)

(5.57568 x 10¹⁰ ft³) x (12in/ft)³ x (2.54cm/in)³ = 1.578856752 x 10¹⁵ mL

The mass of mercury is then found:

m = CV = (0.4μg/mL)(1g/10⁶μg)(1kg/1000g) x (1.578856752 x 10¹⁵ mL) = 6 x 10⁵ kg Hg

3 0
3 years ago
Other questions:
  • Which process is a chemical change? burning a match boiling water melting ice breaking glass
    6·2 answers
  • Suppose the filament in a super-powerful flashlight is heated up to 3600 K. What type of light would be given off by this filame
    13·2 answers
  • If the first reaction used 0.5 g of copper then how many grams of copper will be produced in the last reaction?
    11·1 answer
  • How many moles of hydrogen atoms are there in one mole of C6H1206 molecules?
    10·1 answer
  • Using the equation below, if you have 4.3 mol of nitrogen tribromide and
    13·1 answer
  • Calculate the molar solubility of copper(II) arsenate (Cu3(AsO4)2) in water. Use 7.6 x 10^-36 as the solubility product constant
    13·2 answers
  • What is a chemical equation?
    9·1 answer
  • Brass is an alloy of​
    13·1 answer
  • The part in the middle with a coil of wire wrapped around a metal shaft is part of an electric motor. What is it?
    10·2 answers
  • How many atoms are in 15.9 g of Ag?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!