mkuzyara

Two identical right-angled triangles, JKL
and MLK, overlap along side KL, as
shown. Sides JL and MK intersect at N.
The area of the overlapped region, 4KLN,
is equal to half of the area of 4JKL. The
area of the figure JKLMN is 48 cm2
. If
JK = 6 cm, determine the length of KL.

In right triangle ABC, angle C is a right angle, AC = 12, and BC = 5. What is the length of AB? 

What are isobars?

A) Always provides greater motivation than a lower order need.

B) Never provides as much motivation as a lower order need.

C) Becomes a source of motivation after lower-order needs are satisfied.

D) Contributes directly to the physical survival of the individual.

Describe one advantage of the factored form of a polynomial function and the expanded form of a polynomial function. (pre-calculus)

Part A) When heated, calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas via the reaction CaCO3(s)→CaO(s)+CO2(g) What is the mass of calcium carbonate needed to produce 93.0 L of carbon dioxide at STP? Express your answer with the appropriate units.

Part B) Butane, C4H10, is a component of natural gas that is used as fuel for cigarette lighters. The balanced equation of the complete combustion of butane is 2C4H10(g)+13O2(g)→8CO2(g)+10H2O(l) At 1.00 atm and 23 ∘C, what is the volume of carbon dioxide formed by the combustion of 1.60 g of butane? Express your answer with the appropriate units.

Part A

When heated, calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas via the reaction

CaCO3(s)→CaO(s)+CO2(g)

What is the mass of calcium carbonate needed to produce 25.0 L of carbon dioxide at STP?

Express your answer with the appropriate units.

Part B

Butane, C4H10, is a component of natural gas that is used as fuel for cigarette lighters. The balanced equation of the complete combustion of butane is

2C4H10(g)+13O2(g)→8CO2(g)+10H2O(l)

At 1.00 atm and 23 ∘C, what is the volume of carbon dioxide formed by the combustion of 1.60 g of butane?

Express your answer with the appropriate units.

Set up and use sigma notation to add together the first 100 even numbers. (2+4+6+.....)

(  n+  )

n =   

Sum =   

A) Write an equation for the sequence: 

an =  

a) When heated, calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas via the reaction CaCO3(s)→CaO(s)+CO2(g) What is the mass of calcium carbonate needed to produce 55.0 L of carbon dioxide at STP?

b) Butane, C4H10, is a component of natural gas that is used as fuel for cigarette lighters. The balanced equation of the complete combustion of butane is

2C4H10(g)+13O2(g)→8CO2(g)+10H2O(l)

At 1.00 atm and 23 ∘C, what is the volume of carbon dioxide formed by the combustion of 2.00 g of butane?

Using Flutter ver 3.7.10 and Android Studio Electric Eel 2022.1 patch1

When I run the flutter program (See below) under Android Studio I get the

error msg - /D:/Flutter/flutter_windows_3.7.10-stable/flutter/packages/flutter/lib/src/material/animated_icons.dart:9:8: Error: Dart library 'dart:ui' is not available on this platform.
import 'dart:ui' as ui show Canvas, Paint, Path;

However if I run it under DOS Command line it works fine using Nexus7 emulator. Once I do that than I run Android Studio and use that same emulator Nexus 7 it works correctly. Why does the emulator work correctly for Android Studio only after I use that emulator in DOS Command line?

I put the flutter program and screenshots of the emulator from cmd line and the Android Studio ones(One that passed and the one that failed).

1. How many air molecules are in a 11.5×12.0×10.0 ft room? Assume atmospheric pressure of 1.00 atm, a room temperature of 20.0 ∘C, and ideal behavior.

Volume conversion:There are 28.2 liters in one cubic foot.

2. To identify a diatomic gas (X2), a researcher carried out the following experiment: She weighed an empty 6.3-L bulb, then filled it with the gas at 1.30 atm and 23.0 ∘C and weighed it again. The difference in mass was 9.5 g . Identify the gas.

Express your answer as a chemical formula.

3.

When heated, calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas via the reaction

CaCO3(s)→CaO(s)+CO2(g)

What is the mass of calcium carbonate needed to produce 51.0 L of carbon dioxide at STP?

4. Butane, C4H10, is a component of natural gas that is used as fuel for cigarette lighters. The balanced equation of the complete combustion of butane is

2C4H10(g)+13O2(g)→8CO2(g)+10H2O(l)

At 1.00 atm and 23 ∘C, what is the volume of carbon dioxide formed by the combustion of 4.00 g of butane?

5. A quantity of CO gas occupies a volume of 0.47 Lat 1.5 atm and 290 K . The pressure of the gas is lowered and its temperature is raised until its volume is 2.8 L .

Find the density of the CO under the new conditions.

6. A 48.5-mL sample of gas in a cylinder is warmed from 25 ∘C to 89 ∘C.

What is its volume at the final temperature? (Assume constant pressure.)

7. A balloon contains 0.128 mol of gas and has a volume of 2.84 L .

If an additional 0.164 mol of gas is added to the balloon (at the same temperature and pressure), what will its final volume be?

Calcium may aslo be precipitated as calcium oxalate CaC2O4. The dried calcium oxalate is heated ina crucibule to convert it to calcium oxide and the soldi calcium oide is weighed. If a 50.0 mL water sample produced 0.088 g of Cao by this method, calculate the moalrity of calcium ions in the water

CaC204 (s) > CaO (s) + CO2 (g) + CO (g)

Please show work so I understand how to do it! thanks in advance

HI, I need help on this chemistry question.

Calculate the volume (ml) of 0.5M CaCl2, required to preciptate0.050 g C204^2- as CaC204.

Thank You in advnace

1. Please help me thank you

Help me on this chemistry