A pacemaker:
A. sends electrical impulses to a prosthesis, causing it to move
through brain signals.
B. measures the distance traveled with a prosthetic leg.
C. tracks the speed traveled with a prosthetic leg and adjusts
movements accordingly.
D. sends electrical impulses to the heart, causing it to beat more
regularly
SUEMIT

Answer:

Its B

Explanation: I did the test passed btw

I do not know, i just need points :/

Answer:

44.91% of Oxygen in Iron (III) hydroxide

Explanation:

To solve this question we must find the molar mass of Fe(OH)3 and the molar mass of the oxygen in this molecule. Percent composition will be:

Molar mass Oxygen / molar mass Fe(OH)3 * 100

Molar mass Fe(OH)3 and oxygen:

1Fe = 55.845g/mol*1 = 55.845

3O = 16.00g/mol*3 = 48.00 - Molar mass of Oxygen

3H = 1.008g/mol*3 = 3.024

55.845 + 48.00 + 3.024 =

106.869g/mol is molar mass of Fe(OH)3

% Composition of oxygen is:

48.00g/mol / 106.869g/mol * 100 =

Answer:

a. A compound can be a pure substance.

b. A compound can be isolated.

Explanation:

a. A compound can be a pure substance.

This is because a compound which is made up of two or more atoms is also a pure substance since, a pure substance is a substance that contains only one type of matter - that is, it is in a single phase of matter.

Examples of compounds include water (H₂O) and ammonia (NH₃)

b. A compound can be isolated.

This is because, since it is a pure substance, it has unique properties which distinguish it from other compounds.

Answer: 351

Explanation: From °C to kelvin we do

K=273+°C

From Kelvin to °C we do

°C=K-273 or -273+ K

Answer:

strong acids fully ionise to produce H+ ions.

weak acid PARTIALLY ionise

strong Base fully ionise to produce OH- ions

weak base partially ionise

thus ans is C

Answer:

c. The circulatory system moves oxygen throughout the body that is brought in by the respiratory system.

Explanation:

The circulatory system delivers oxygen and nutrients to cells and takes away wastes.

The respiratory system is the network of organs and tissues that help you breathe.

So, of the options, option c is correct.

Hope this helps!

The  statement which  best describes how two body systems work together to maintain homeostasis is that circulatory system moves oxygen throughout the body that is brought in by the respiratory system.

In biology, homeostasis  is the state of steady internal, physical, and chemical conditions maintained by living systems.This is the condition of optimal functioning for the organism and includes many variables, such as body temperature and fluid balance, being kept within certain pre-set limits (homeostatic range).

Other variables include the pH of extracellular fluid, the concentrations of sodium, potassium, and calcium ions, as well as the blood sugar level, and these need to be regulated despite changes in the environment, diet, or level of activity. Each of these variables is controlled by one or more regulators or homeostatic mechanisms, which together maintain life.

Learn more about homeostasis,here:

https://brainly.com/question/3888340

#SPJ6

Answer:

HCl acts as an excess reagent

Explanation:

The reaction equation is;

PbO + 2HCl → PbCl2 + H20

Number of moles of PbO = 13g/223.2 g/mol = 0.058 moles

Since the mole ratio is 1:1, 0.058 moles of PbCl2 is produced

Number of moles of HCl = 6.4 g/36.5g/mol = 0.175 moles

2 moles of HCl yields 1 mole of PbCl2

0.175 moles yields 0.175 moles * 1/2

= 0.0875 moles of PbCl2

Hence; PbO yields the least number of moles of product so it is the limiting reactant and HCl is the reactant in excess

Answer: What are you in, fudging grade two-thousand???

Answer:

     3S₈  +  28Br₂ => 8S₃Br₇

Explanation:

Start with either sulfur (S) or bromine (Br) and balance ...

    3S₈  +  Br₂ => 8S₃Br₇    or      S₈  +  7/2Br₂ => S₃Br₇

Balance the remaining reactant ...

    3S₈  +  56/2Br₂ => 8S₃Br₇    

Remove fractions by multiplying by the fraction's denominator

    2(3S₈  +  56/2Br₂ => 8S₃Br₇)     =>     6S₈  +  56Br₂ => 16S₃Br₇      

Reduce to smallest whole number ratio => standard equation at STP ...

        3S₈  +  28Br₂ => 8S₃Br₇

Answer:

18.0 g of mercury (11) oxide decomposes to produce 9.0 grams of mercury

Explanation:

Mercury oxide has molar mass of 216.6 g/ mol. It gas a molecular formula of HgO.

The decomposition of mercury oxide is given by the chemical equation below:

2HgO ----> 2Hg + O₂

2 moles of HgO decomposes to produce 1 mole of Hg

2 moles of HgO has a mass of 433.2 g

433.2 g of HgO produces 216.6 g of Hg

18.0 of HgO will produce 18 × 216.6/433.2 g of Hg = 9.0 g of Hg

Therefore, 18.0 g of mercury (11) oxide decomposes to produce 9.0 grams of mercury

Answer:

i dont see the pic

Explanation:

Answer:

According to Gas Law

Volume is inversely proportional to pressure, if the number of particles and the temperature are constant. There are two ways for the pressure to remain the same as the volume increases.

Explanation:

I don't think a decomposer and detritvore would compete with each other because decomposers job is to break down dead, organic materials and detritvores feed on dead organisms

Answer:

Explanation:

Answer:

1 mole of iron =6.023×10^23 particles

1 particles of iron=1/6.023×10^23 mole

7.46×10^25 particles =1/6.023×10^23×7.46×10^25

=1.238×10^48 mole is a required answer.

Answer:

c. is the answer

Explanation:

c. Pascal principal

Answer:

it is easy to push a car on smooth road than on a rough road because friction is less in smooth road than on rough roads.

Answer:

Why can a car run faster on a smooth

rood than on a rough road it is because friction is less in smooth roads than in rough road....

Explanation:

hope it helps..stay safe!

Answer:

5.55 L

Explanation:

This excersise can be solved by the Boyle's law.

This law for gases states that the pressure of a gas in a vessel is inversely proportional to the volume of the vessel.

P₁ . V₁  = P₂ . V₂

The law comes from the Ideal Gases Law, in the first term.

P . V = n . R . T  In this case, n . R . T are all constant.

6.35 L . 88.6 kPa = 101.3 kPa . V₂

V₂ = (6.35 L . 88.6 kPa) / 101.3 kPa

V₂ = 5.55 L

It is inversely proportional because, as it happened in this case, pressure was increased, therefore volume decreased.

the chemical equation will be XY2

Answer:

Hidrochloric Acid

Explanation:

Answer:

10.8 days (3 sig.figs.)

Explanation:

All radioactive decay is 1st order decay defined by the expression A = A₀e^-kt

which is solved for time of decay (t) => t = ln(A/A₀) / -k

A = final weight = 1.0 gram

A₀ = initial weight = 16.0 grams

k = rate constant = 0.693/t(1/2) = 0.693/2.69 days = 0.258 days⁻¹

t = ln(1/16) / -0.258da⁻¹ = (-2.77/-0.258) days = 10.74646792 days (calculator)

≅ 10 days (1 sig. fig. based on given 1 gram mass)

Answer:

in the lead strip the will be no change and no reaction. this is job salvation that is made when magnesium powder and lead to our heater together

Answer:

TRUE

Explanation:

Standard temperature is 273K and 350°C is 623K.

V/V' = T/T'

3/6.84 = 273/T'

T' = (273×6.84)/3

=> T' = 623K

So it is true.

Answer:

In 2C2H6, The C= 4 and H= 12

Explanation:

Atoms are tiny spheres that cannot be divided

Answer:

2K + 2H2O ---> 2KOH + H2

Explanation:

Answer:

2k+2H2O ➡️2KOH + H2.....